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Finding the Fourth Proportional to 457,865.31, 631,874.52 and 253,902.54

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Solution

The fourth proportional to 457,865.31, 631,874.52 and 253,902.54 is: 350,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,865.31 : 631,874.52 = 253,902.54 : x
  2. Step 2: Convert to fraction form
    457,865.31/631,874.52 = 253,902.54/x
  3. Step 3: Cross multiply
    457,865.31x = 631,874.52 × 253,902.54
  4. Step 4: Simplify right side
    457,865.31x = 160,434,545,589.28
  5. Step 5: Solve for x
    x = 160,434,545,589.28/457,865.31
  6. Step 6: Final answer
    x = 350,396.81

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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.