Finding the Fourth Proportional to 431,514.10, 647,214.45 and 132,024.70
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Solution
The fourth proportional to 431,514.10, 647,214.45 and 132,024.70 is: 198,019.70
Step by Step Solution
- Step 1: Write the proportion equation
431,514.10 : 647,214.45 = 132,024.70 : x - Step 2: Convert to fraction form
431,514.10/647,214.45 = 132,024.70/x - Step 3: Cross multiply
431,514.10x = 647,214.45 × 132,024.70 - Step 4: Simplify right side
431,514.10x = 85,448,293,596.92 - Step 5: Solve for x
x = 85,448,293,596.92/431,514.10 - Step 6: Final answer
x = 198,019.70
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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.