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Finding the Fourth Proportional to 327.31, 490.86 and 96.12

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Solution

The fourth proportional to 327.31, 490.86 and 96.12 is: 144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.31 : 490.86 = 96.12 : x
  2. Step 2: Convert to fraction form
    327.31/490.86 = 96.12/x
  3. Step 3: Cross multiply
    327.31x = 490.86 × 96.12
  4. Step 4: Simplify right side
    327.31x = 47,181.46
  5. Step 5: Solve for x
    x = 47,181.46/327.31
  6. Step 6: Final answer
    x = 144.15

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