Finding the Fourth Proportional to 207,514.29, 311,551.29 and 132,780.31
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Solution
The fourth proportional to 207,514.29, 311,551.29 and 132,780.31 is: 199,349.53
Step by Step Solution
- Step 1: Write the proportion equation
207,514.29 : 311,551.29 = 132,780.31 : x - Step 2: Convert to fraction form
207,514.29/311,551.29 = 132,780.31/x - Step 3: Cross multiply
207,514.29x = 311,551.29 × 132,780.31 - Step 4: Simplify right side
207,514.29x = 41,367,876,867.10 - Step 5: Solve for x
x = 41,367,876,867.10/207,514.29 - Step 6: Final answer
x = 199,349.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.