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Finding the Fourth Proportional to 218.26, 327 and 126.88

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Solution

The fourth proportional to 218.26, 327 and 126.88 is: 190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.26 : 327 = 126.88 : x
  2. Step 2: Convert to fraction form
    218.26/327 = 126.88/x
  3. Step 3: Cross multiply
    218.26x = 327 × 126.88
  4. Step 4: Simplify right side
    218.26x = 41,489.76
  5. Step 5: Solve for x
    x = 41,489.76/218.26
  6. Step 6: Final answer
    x = 190.09

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