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Finding the Fourth Proportional to 658.85, 987.73 and 247.75

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Solution

The fourth proportional to 658.85, 987.73 and 247.75 is: 371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.85 : 987.73 = 247.75 : x
  2. Step 2: Convert to fraction form
    658.85/987.73 = 247.75/x
  3. Step 3: Cross multiply
    658.85x = 987.73 × 247.75
  4. Step 4: Simplify right side
    658.85x = 244,707.02
  5. Step 5: Solve for x
    x = 244,707.02/658.85
  6. Step 6: Final answer
    x = 371.42

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