Finding the Fourth Proportional to 284,577.12, 392,682.24 and 157,235.28
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Solution
The fourth proportional to 284,577.12, 392,682.24 and 157,235.28 is: 216,965.80
Step by Step Solution
- Step 1: Write the proportion equation
284,577.12 : 392,682.24 = 157,235.28 : x - Step 2: Convert to fraction form
284,577.12/392,682.24 = 157,235.28/x - Step 3: Cross multiply
284,577.12x = 392,682.24 × 157,235.28 - Step 4: Simplify right side
284,577.12x = 61,743,501,957.43 - Step 5: Solve for x
x = 61,743,501,957.43/284,577.12 - Step 6: Final answer
x = 216,965.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.