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Finding the Fourth Proportional to 331,539.52, 457,512.24 and 202,693.78

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Solution

The fourth proportional to 331,539.52, 457,512.24 and 202,693.78 is: 279,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,539.52 : 457,512.24 = 202,693.78 : x
  2. Step 2: Convert to fraction form
    331,539.52/457,512.24 = 202,693.78/x
  3. Step 3: Cross multiply
    331,539.52x = 457,512.24 × 202,693.78
  4. Step 4: Simplify right side
    331,539.52x = 92,734,885,321.87
  5. Step 5: Solve for x
    x = 92,734,885,321.87/331,539.52
  6. Step 6: Final answer
    x = 279,709.90

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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.