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Finding the Fourth Proportional to 351.91, 527.57 and 135.64

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Solution

The fourth proportional to 351.91, 527.57 and 135.64 is: 203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.91 : 527.57 = 135.64 : x
  2. Step 2: Convert to fraction form
    351.91/527.57 = 135.64/x
  3. Step 3: Cross multiply
    351.91x = 527.57 × 135.64
  4. Step 4: Simplify right side
    351.91x = 71,558.92
  5. Step 5: Solve for x
    x = 71,558.92/351.91
  6. Step 6: Final answer
    x = 203.34

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