Exploring the Percent Proportion Method

This video tutorial covers lesson 61 on using percent proportions. It explains the concept of percent proportion as part over whole equals percent over 100. The tutorial provides examples of how to set up and solve proportions to find the percent, the part, and the whole in various problems. Key words like 'is' and 'of' are emphasized as crucial for setting up proportions correctly. The video includes multiple examples and encourages practice to master the concept.

What is the percent proportion formula?

• part over whole equals percent over 100

• whole over part equals percent over 100

• percent over whole equals part over 100

• part over percent equals whole over 100

In the percent proportion formula, what does the number 100 represent?

• The part

• The whole

• The base

• The percent

How would you set up the proportion for the question: 12 is what percent of 32?

• x/12 = 32/100

• 12/x = 32/100

• 32/12 = x/100

• 12/32 = x/100

What is the percent when 12 is part of 32?

• 75%

• 50%

• 37.5%

• 25%

What percent of 18 is 9?

• 50%

• 75%

• 37.5%

• 25%

How would you set up the proportion for the question: What number is 20% of 5?

• 20/x = 5/100

• x/20 = 5/100

• 5/x = 20/100

• x/5 = 20/100

What number is 15.5% of 450?

• 75.25

• 69.75

• 67.5

• 72.5

What number is 11.4% of 330?

• 35.62

• 41.62

• 37.62

• 39.62

78 is 60% of what number?

• 120

• 130

• 150

• 140

30% of what number is 63?

• 190

• 210

• 220

• 200