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Finding the Fourth Proportional to 361.31, 541.04 and 239.19

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Solution

The fourth proportional to 361.31, 541.04 and 239.19 is: 358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.31 : 541.04 = 239.19 : x
  2. Step 2: Convert to fraction form
    361.31/541.04 = 239.19/x
  3. Step 3: Cross multiply
    361.31x = 541.04 × 239.19
  4. Step 4: Simplify right side
    361.31x = 129,410.16
  5. Step 5: Solve for x
    x = 129,410.16/361.31
  6. Step 6: Final answer
    x = 358.17

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