1.

What is the fourth proportional to 378, 546 and 306?1. 4502. 4423. 4404. 412

Answer» Correct Answer - Option 2 : 442

Given:

378, 546, and 306 are in proportion.

Concept used:

If a, b, c, and d are in proportion

then (a/b) = (c/d)

Calculations:

Let the fourth proportional be x.

Then (378/546) = (306/x)

⇒ x = (546 × 306)/378

⇒ x = 442

∴ The fourth proportional is 442.



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