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Finding the Fourth Proportional to 520.32, 779.82 and 231.14

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Solution

The fourth proportional to 520.32, 779.82 and 231.14 is: 346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.32 : 779.82 = 231.14 : x
  2. Step 2: Convert to fraction form
    520.32/779.82 = 231.14/x
  3. Step 3: Cross multiply
    520.32x = 779.82 × 231.14
  4. Step 4: Simplify right side
    520.32x = 180,247.59
  5. Step 5: Solve for x
    x = 180,247.59/520.32
  6. Step 6: Final answer
    x = 346.42

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