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Finding the Fourth Proportional to 232.26, 348.41 and 86.05

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Solution

The fourth proportional to 232.26, 348.41 and 86.05 is: 129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.26 : 348.41 = 86.05 : x
  2. Step 2: Convert to fraction form
    232.26/348.41 = 86.05/x
  3. Step 3: Cross multiply
    232.26x = 348.41 × 86.05
  4. Step 4: Simplify right side
    232.26x = 29,980.68
  5. Step 5: Solve for x
    x = 29,980.68/232.26
  6. Step 6: Final answer
    x = 129.08

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