Finding the Fourth Proportional to 381,691.20, 572,536.80 and 269,716.80
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Solution
The fourth proportional to 381,691.20, 572,536.80 and 269,716.80 is: 404,575.20
Step by Step Solution
- Step 1: Write the proportion equation
381,691.20 : 572,536.80 = 269,716.80 : x - Step 2: Convert to fraction form
381,691.20/572,536.80 = 269,716.80/x - Step 3: Cross multiply
381,691.20x = 572,536.80 × 269,716.80 - Step 4: Simplify right side
381,691.20x = 154,422,793,578.24 - Step 5: Solve for x
x = 154,422,793,578.24/381,691.20 - Step 6: Final answer
x = 404,575.20
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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.