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Finding the Fourth Proportional to 516.92, 774.47 and 355.33

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Solution

The fourth proportional to 516.92, 774.47 and 355.33 is: 532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.92 : 774.47 = 355.33 : x
  2. Step 2: Convert to fraction form
    516.92/774.47 = 355.33/x
  3. Step 3: Cross multiply
    516.92x = 774.47 × 355.33
  4. Step 4: Simplify right side
    516.92x = 275,191.38
  5. Step 5: Solve for x
    x = 275,191.38/516.92
  6. Step 6: Final answer
    x = 532.36

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