Question

Find which of the following are in proportion?
(i) $33,44,66,88$
(ii) $46,69,69,46$

Answer 1

(i) Given $33,44,66,88$
Product of extremes $=33\times 88=2904$
Product of means $=44\times 66=2904$
Therefore product of extremes = product of means
Hence, given numbers are in proportion.

(ii) Given $46,69,69,46$
Product of extremes $=46\times 46=2116$
Product of means $=69\times 69=4761$
Therefore product of extremes is not equal to product of means
Hence, given numbers are not in proportion