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Finding the Fourth Proportional to 439.25, 658.91 and 146.73

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Solution

The fourth proportional to 439.25, 658.91 and 146.73 is: 220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.25 : 658.91 = 146.73 : x
  2. Step 2: Convert to fraction form
    439.25/658.91 = 146.73/x
  3. Step 3: Cross multiply
    439.25x = 658.91 × 146.73
  4. Step 4: Simplify right side
    439.25x = 96,681.13
  5. Step 5: Solve for x
    x = 96,681.13/439.25
  6. Step 6: Final answer
    x = 220.11

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