Finding the Fourth Proportional to 284,523.68, 392,638.01 and 157,211.12
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Solution
The fourth proportional to 284,523.68, 392,638.01 and 157,211.12 is: 216,948.76
Step by Step Solution
- Step 1: Write the proportion equation
284,523.68 : 392,638.01 = 157,211.12 : x - Step 2: Convert to fraction form
284,523.68/392,638.01 = 157,211.12/x - Step 3: Cross multiply
284,523.68x = 392,638.01 × 157,211.12 - Step 4: Simplify right side
284,523.68x = 61,727,061,502.21 - Step 5: Solve for x
x = 61,727,061,502.21/284,523.68 - Step 6: Final answer
x = 216,948.76
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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.