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Finding the Fourth Proportional to 223.83, 335.79 and 86.87

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Solution

The fourth proportional to 223.83, 335.79 and 86.87 is: 130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.83 : 335.79 = 86.87 : x
  2. Step 2: Convert to fraction form
    223.83/335.79 = 86.87/x
  3. Step 3: Cross multiply
    223.83x = 335.79 × 86.87
  4. Step 4: Simplify right side
    223.83x = 29,170.70
  5. Step 5: Solve for x
    x = 29,170.70/223.83
  6. Step 6: Final answer
    x = 130.33

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