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Finding the Fourth Proportional to 414.38, 621.66 and 125.82

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Solution

The fourth proportional to 414.38, 621.66 and 125.82 is: 188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.38 : 621.66 = 125.82 : x
  2. Step 2: Convert to fraction form
    414.38/621.66 = 125.82/x
  3. Step 3: Cross multiply
    414.38x = 621.66 × 125.82
  4. Step 4: Simplify right side
    414.38x = 78,217.26
  5. Step 5: Solve for x
    x = 78,217.26/414.38
  6. Step 6: Final answer
    x = 188.76

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