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Finding the Fourth Proportional to 439.24, 658.90 and 114.61

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Solution

The fourth proportional to 439.24, 658.90 and 114.61 is: 171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.24 : 658.90 = 114.61 : x
  2. Step 2: Convert to fraction form
    439.24/658.90 = 114.61/x
  3. Step 3: Cross multiply
    439.24x = 658.90 × 114.61
  4. Step 4: Simplify right side
    439.24x = 75,516.26
  5. Step 5: Solve for x
    x = 75,516.26/439.24
  6. Step 6: Final answer
    x = 171.92

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