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Finding the Fourth Proportional to 318.01, 476.82 and 171.92

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Solution

The fourth proportional to 318.01, 476.82 and 171.92 is: 257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318.01 : 476.82 = 171.92 : x
  2. Step 2: Convert to fraction form
    318.01/476.82 = 171.92/x
  3. Step 3: Cross multiply
    318.01x = 476.82 × 171.92
  4. Step 4: Simplify right side
    318.01x = 81,974.89
  5. Step 5: Solve for x
    x = 81,974.89/318.01
  6. Step 6: Final answer
    x = 257.77

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