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Finding the Fourth Proportional to 457,682.28, 631,543.05 and 253,731.30

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Solution

The fourth proportional to 457,682.28, 631,543.05 and 253,731.30 is: 350,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,682.28 : 631,543.05 = 253,731.30 : x
  2. Step 2: Convert to fraction form
    457,682.28/631,543.05 = 253,731.30/x
  3. Step 3: Cross multiply
    457,682.28x = 631,543.05 × 253,731.30
  4. Step 4: Simplify right side
    457,682.28x = 160,242,239,082.47
  5. Step 5: Solve for x
    x = 160,242,239,082.47/457,682.28
  6. Step 6: Final answer
    x = 350,116.76

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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.