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Finding the Fourth Proportional to 431,850.72, 647,752.73 and 132,332.17

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Solution

The fourth proportional to 431,850.72, 647,752.73 and 132,332.17 is: 198,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,850.72 : 647,752.73 = 132,332.17 : x
  2. Step 2: Convert to fraction form
    431,850.72/647,752.73 = 132,332.17/x
  3. Step 3: Cross multiply
    431,850.72x = 647,752.73 × 132,332.17
  4. Step 4: Simplify right side
    431,850.72x = 85,718,521,952.05
  5. Step 5: Solve for x
    x = 85,718,521,952.05/431,850.72
  6. Step 6: Final answer
    x = 198,491.09

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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.