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Finding the Fourth Proportional to 574.16, 861.17 and 265.77

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Solution

The fourth proportional to 574.16, 861.17 and 265.77 is: 398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.16 : 861.17 = 265.77 : x
  2. Step 2: Convert to fraction form
    574.16/861.17 = 265.77/x
  3. Step 3: Cross multiply
    574.16x = 861.17 × 265.77
  4. Step 4: Simplify right side
    574.16x = 228,871.82
  5. Step 5: Solve for x
    x = 228,871.82/574.16
  6. Step 6: Final answer
    x = 398.62

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