Finding the Fourth Proportional to 284,437.44, 392,523.84 and 157,118.40
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Solution
The fourth proportional to 284,437.44, 392,523.84 and 157,118.40 is: 216,823.49
Step by Step Solution
- Step 1: Write the proportion equation
284,437.44 : 392,523.84 = 157,118.40 : x - Step 2: Convert to fraction form
284,437.44/392,523.84 = 157,118.40/x - Step 3: Cross multiply
284,437.44x = 392,523.84 × 157,118.40 - Step 4: Simplify right side
284,437.44x = 61,672,717,702.66 - Step 5: Solve for x
x = 61,672,717,702.66/284,437.44 - Step 6: Final answer
x = 216,823.49
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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.