Ratio and Proportion Tables

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Find the missing value(s) for the ratio table.

• a = 36

  b = 108

• a = 108

  b = 36

• a = 32

  b = 90

• a = 108

  b = 90

Find the missing value for the ratio.

• 3

• 9

• 7

• 21

What is the value of B in the ratio table?

• 28

• 70

• 49

• 56

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Ratio Table Missing Value

Luz earns $400 for 40 hours of work. Use a ratio table to determine how much she earns for 6 hours of work.

• $60.00

• $20.00

• $40.00

• $10.00

Joselyn earns $400 for 40 hours of work. Use a ratio table to determine how much she earns for 6 hours of work.

• $60.00

• $20.00

• $40.00

• $10.00

What is the missing number in the ratio table?

• 72

• 85

• 76

• 90

Find the missing values in the ratio table. 

• 35, 12

• 14, 100

• 15, 30

• cannot be determined

Another kind of ratio relationship you can find is to look inside a ratio itself. 2:6 is the top ratio in this table. To get from 2 to 6, you would multiply by 3. Look at each row and notice that this times 3 relationship continues. What is the value of x?

• 30

• 3

• 15

• 20

Find the missing value for the ratio.

• 56

• 48

• 7

• 72