Finding the Fourth Proportional to 285,565.17, 428,348.78 and 72,332.99
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Solution
The fourth proportional to 285,565.17, 428,348.78 and 72,332.99 is: 108,499.74
Step by Step Solution
- Step 1: Write the proportion equation
285,565.17 : 428,348.78 = 72,332.99 : x - Step 2: Convert to fraction form
285,565.17/428,348.78 = 72,332.99/x - Step 3: Cross multiply
285,565.17x = 428,348.78 × 72,332.99 - Step 4: Simplify right side
285,565.17x = 30,983,748,020.25 - Step 5: Solve for x
x = 30,983,748,020.25/285,565.17 - Step 6: Final answer
x = 108,499.74
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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.