Home / 331,540.52-457,513.62-202,694.78

Finding the Fourth Proportional to 331,540.52, 457,513.62 and 202,694.78

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Solution

The fourth proportional to 331,540.52, 457,513.62 and 202,694.78 is: 279,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,540.52 : 457,513.62 = 202,694.78 : x
  2. Step 2: Convert to fraction form
    331,540.52/457,513.62 = 202,694.78/x
  3. Step 3: Cross multiply
    331,540.52x = 457,513.62 × 202,694.78
  4. Step 4: Simplify right side
    331,540.52x = 92,735,622,552.90
  5. Step 5: Solve for x
    x = 92,735,622,552.90/331,540.52
  6. Step 6: Final answer
    x = 279,711.28

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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.