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Finding the Fourth Proportional to 499.10, 747.97 and 238.95

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Solution

The fourth proportional to 499.10, 747.97 and 238.95 is: 358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.10 : 747.97 = 238.95 : x
  2. Step 2: Convert to fraction form
    499.10/747.97 = 238.95/x
  3. Step 3: Cross multiply
    499.10x = 747.97 × 238.95
  4. Step 4: Simplify right side
    499.10x = 178,726.83
  5. Step 5: Solve for x
    x = 178,726.83/499.10
  6. Step 6: Final answer
    x = 358.10

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