If x, y, and z are in proportion, then:

x: y:: y: z

x: y:: z: y

x: y:: z: x

None of these

If x, y, and z are in proportion, then the correct option will be x: y:: y: z.

Step-by-step explanation:

A proportion is an equation in which two ratios are set equal to each other.

If 3 numbers are in proportion to each other then their ratios should be equal to one another.

ND12_8_2023