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Finding the Fourth Proportional to 457,453.92, 631,287.89 and 253,508.20

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Solution

The fourth proportional to 457,453.92, 631,287.89 and 253,508.20 is: 349,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,453.92 : 631,287.89 = 253,508.20 : x
  2. Step 2: Convert to fraction form
    457,453.92/631,287.89 = 253,508.20/x
  3. Step 3: Cross multiply
    457,453.92x = 631,287.89 × 253,508.20
  4. Step 4: Simplify right side
    457,453.92x = 160,036,656,675.70
  5. Step 5: Solve for x
    x = 160,036,656,675.70/457,453.92
  6. Step 6: Final answer
    x = 349,842.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.