Ratio and Proportion

Question 1

In ratio ( : ) means

Answer 1

is to

Question 2

If two terms of a ratio are multiplied or divided by the same number,

Answer 2

The ratio remains unchanged

Question 3

Two ratios with the same value are equivalent.

Answer 3

Has equal cross products and equal

reciprocals.

Question 4

If Numerator is missing

Answer 4

Cross multiply then divide by the unused denominator

Question 5

If the denominator is missing

Answer 5

Cross multiply then divide by the unused numerator

Question 6

Proportion can be expressed in three forms

Answer 6

a:b :: c:d ( :: ) means equal
a:b = c:d
a/b =c/d

Question 7

What are the means?

Answer 7

The inside group

Question 8

What are the extremities?

Answer 8

The outside group

Question 9

The product of the extreme is ________ to the products of the means

Answer 9

equal

Question 10

If the missing term is a mean,

Answer 10

Multiply products then divide by the given mean

Question 11

If the missing term is extreme,

Answer 11

Multiply means then divide by the given extreme

Question 12

Proportion has a ___________

Answer 12

direct relationship

Question 13

The product of the mean is equal to the products of the extreme

Answer 13

b:c = a:d

Question 14

Remember

Answer 14

PORTION OF A WHOLE