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Finding the Fourth Proportional to 432.53, 648.89 and 124.38

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Solution

The fourth proportional to 432.53, 648.89 and 124.38 is: 186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.53 : 648.89 = 124.38 : x
  2. Step 2: Convert to fraction form
    432.53/648.89 = 124.38/x
  3. Step 3: Cross multiply
    432.53x = 648.89 × 124.38
  4. Step 4: Simplify right side
    432.53x = 80,708.78
  5. Step 5: Solve for x
    x = 80,708.78/432.53
  6. Step 6: Final answer
    x = 186.60

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