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Finding the Fourth Proportional to 238.28, 357.39 and 75.92

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Solution

The fourth proportional to 238.28, 357.39 and 75.92 is: 113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.28 : 357.39 = 75.92 : x
  2. Step 2: Convert to fraction form
    238.28/357.39 = 75.92/x
  3. Step 3: Cross multiply
    238.28x = 357.39 × 75.92
  4. Step 4: Simplify right side
    238.28x = 27,131.26
  5. Step 5: Solve for x
    x = 27,131.26/238.28
  6. Step 6: Final answer
    x = 113.87

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