Finding the Fourth Proportional to 209,195.31, 288,691.79 and 113,702.03
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Solution
The fourth proportional to 209,195.31, 288,691.79 and 113,702.03 is: 156,910.02
Step by Step Solution
- Step 1: Write the proportion equation
209,195.31 : 288,691.79 = 113,702.03 : x - Step 2: Convert to fraction form
209,195.31/288,691.79 = 113,702.03/x - Step 3: Cross multiply
209,195.31x = 288,691.79 × 113,702.03 - Step 4: Simplify right side
209,195.31x = 32,824,840,555.36 - Step 5: Solve for x
x = 32,824,840,555.36/209,195.31 - Step 6: Final answer
x = 156,910.02
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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.