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Finding the Fourth Proportional to 321.13, 481.22 and 158.92

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Solution

The fourth proportional to 321.13, 481.22 and 158.92 is: 238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.13 : 481.22 = 158.92 : x
  2. Step 2: Convert to fraction form
    321.13/481.22 = 158.92/x
  3. Step 3: Cross multiply
    321.13x = 481.22 × 158.92
  4. Step 4: Simplify right side
    321.13x = 76,475.48
  5. Step 5: Solve for x
    x = 76,475.48/321.13
  6. Step 6: Final answer
    x = 238.14

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