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Finding the Fourth Proportional to 411.23, 616.89 and 167.72

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Solution

The fourth proportional to 411.23, 616.89 and 167.72 is: 251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.23 : 616.89 = 167.72 : x
  2. Step 2: Convert to fraction form
    411.23/616.89 = 167.72/x
  3. Step 3: Cross multiply
    411.23x = 616.89 × 167.72
  4. Step 4: Simplify right side
    411.23x = 103,464.79
  5. Step 5: Solve for x
    x = 103,464.79/411.23
  6. Step 6: Final answer
    x = 251.60

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