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Finding the Fourth Proportional to 457,403.08, 631,230.10 and 253,434.92

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Solution

The fourth proportional to 457,403.08, 631,230.10 and 253,434.92 is: 349,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,403.08 : 631,230.10 = 253,434.92 : x
  2. Step 2: Convert to fraction form
    457,403.08/631,230.10 = 253,434.92/x
  3. Step 3: Cross multiply
    457,403.08x = 631,230.10 × 253,434.92
  4. Step 4: Simplify right side
    457,403.08x = 159,975,748,472.47
  5. Step 5: Solve for x
    x = 159,975,748,472.47/457,403.08
  6. Step 6: Final answer
    x = 349,747.86

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Similar ratio
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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.