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Finding the Fourth Proportional to 361, 541.52 and 144.64

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Solution

The fourth proportional to 361, 541.52 and 144.64 is: 216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361 : 541.52 = 144.64 : x
  2. Step 2: Convert to fraction form
    361/541.52 = 144.64/x
  3. Step 3: Cross multiply
    361x = 541.52 × 144.64
  4. Step 4: Simplify right side
    361x = 78,325.45
  5. Step 5: Solve for x
    x = 78,325.45/361
  6. Step 6: Final answer
    x = 216.97

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