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Finding the Fourth Proportional to 392,867.34, 542,160.72 and 223,102.68

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Solution

The fourth proportional to 392,867.34, 542,160.72 and 223,102.68 is: 307,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,867.34 : 542,160.72 = 223,102.68 : x
  2. Step 2: Convert to fraction form
    392,867.34/542,160.72 = 223,102.68/x
  3. Step 3: Cross multiply
    392,867.34x = 542,160.72 × 223,102.68
  4. Step 4: Simplify right side
    392,867.34x = 120,957,509,622.73
  5. Step 5: Solve for x
    x = 120,957,509,622.73/392,867.34
  6. Step 6: Final answer
    x = 307,883.85

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