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Finding the Fourth Proportional to 399,229.28, 550,884.12 and 238,103.24

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Solution

The fourth proportional to 399,229.28, 550,884.12 and 238,103.24 is: 328,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,229.28 : 550,884.12 = 238,103.24 : x
  2. Step 2: Convert to fraction form
    399,229.28/550,884.12 = 238,103.24/x
  3. Step 3: Cross multiply
    399,229.28x = 550,884.12 × 238,103.24
  4. Step 4: Simplify right side
    399,229.28x = 131,167,293,836.55
  5. Step 5: Solve for x
    x = 131,167,293,836.55/399,229.28
  6. Step 6: Final answer
    x = 328,551.29

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