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Finding the Fourth Proportional to 514.27, 771.40 and 129.52

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Solution

The fourth proportional to 514.27, 771.40 and 129.52 is: 194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.27 : 771.40 = 129.52 : x
  2. Step 2: Convert to fraction form
    514.27/771.40 = 129.52/x
  3. Step 3: Cross multiply
    514.27x = 771.40 × 129.52
  4. Step 4: Simplify right side
    514.27x = 99,908.15
  5. Step 5: Solve for x
    x = 99,908.15/514.27
  6. Step 6: Final answer
    x = 194.27

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