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Finding the Fourth Proportional to 396.31, 547.02 and 248.94

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Solution

The fourth proportional to 396.31, 547.02 and 248.94 is: 343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.31 : 547.02 = 248.94 : x
  2. Step 2: Convert to fraction form
    396.31/547.02 = 248.94/x
  3. Step 3: Cross multiply
    396.31x = 547.02 × 248.94
  4. Step 4: Simplify right side
    396.31x = 136,173.79
  5. Step 5: Solve for x
    x = 136,173.79/396.31
  6. Step 6: Final answer
    x = 343.61

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