Question

Verify that 20, 80, 320 are in continued proportion.​

Answer 1

Answer:

if b² =ac then they are in continued proportion

that is if 80*80=320*20

6400=6400

tus they are in continued proportion

Answer 2

QUESTION:

• Verify that 20, 80, 320 are in continued proportion.

PROVED:

$\\ \\ \\ \\ \\ \\ \\ \\ 20:80::80:320 \\ \\ \\ \\ \\ \frac{20}{80} = \frac{80}{320} \\ \\ \\ \\ \frac{1}{4} = \frac{1}{4} (proved)$

SO THEY ARE IN CONTINUED PROPORTION