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Finding the Fourth Proportional to 429,067.80, 643,028.49 and 226,250.28

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Solution

The fourth proportional to 429,067.80, 643,028.49 and 226,250.28 is: 339,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,067.80 : 643,028.49 = 226,250.28 : x
  2. Step 2: Convert to fraction form
    429,067.80/643,028.49 = 226,250.28/x
  3. Step 3: Cross multiply
    429,067.80x = 643,028.49 × 226,250.28
  4. Step 4: Simplify right side
    429,067.80x = 145,485,375,910.48
  5. Step 5: Solve for x
    x = 145,485,375,910.48/429,067.80
  6. Step 6: Final answer
    x = 339,073.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.