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Finding the Fourth Proportional to 151.76, 227.46 and 83.28

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Solution

The fourth proportional to 151.76, 227.46 and 83.28 is: 124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.76 : 227.46 = 83.28 : x
  2. Step 2: Convert to fraction form
    151.76/227.46 = 83.28/x
  3. Step 3: Cross multiply
    151.76x = 227.46 × 83.28
  4. Step 4: Simplify right side
    151.76x = 18,942.87
  5. Step 5: Solve for x
    x = 18,942.87/151.76
  6. Step 6: Final answer
    x = 124.82

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