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Finding the Fourth Proportional to 411.56, 617.17 and 167.92

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Solution

The fourth proportional to 411.56, 617.17 and 167.92 is: 251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.56 : 617.17 = 167.92 : x
  2. Step 2: Convert to fraction form
    411.56/617.17 = 167.92/x
  3. Step 3: Cross multiply
    411.56x = 617.17 × 167.92
  4. Step 4: Simplify right side
    411.56x = 103,635.19
  5. Step 5: Solve for x
    x = 103,635.19/411.56
  6. Step 6: Final answer
    x = 251.81

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