Finding the Fourth Proportional to 284,474.12, 392,559.78 and 157,125.08
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Solution
The fourth proportional to 284,474.12, 392,559.78 and 157,125.08 is: 216,824.60
Step by Step Solution
- Step 1: Write the proportion equation
284,474.12 : 392,559.78 = 157,125.08 : x - Step 2: Convert to fraction form
284,474.12/392,559.78 = 157,125.08/x - Step 3: Cross multiply
284,474.12x = 392,559.78 × 157,125.08 - Step 4: Simplify right side
284,474.12x = 61,680,986,837.28 - Step 5: Solve for x
x = 61,680,986,837.28/284,474.12 - Step 6: Final answer
x = 216,824.60
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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.