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Finding the Fourth Proportional to 268.76, 402.66 and 187.44

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Solution

The fourth proportional to 268.76, 402.66 and 187.44 is: 280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.76 : 402.66 = 187.44 : x
  2. Step 2: Convert to fraction form
    268.76/402.66 = 187.44/x
  3. Step 3: Cross multiply
    268.76x = 402.66 × 187.44
  4. Step 4: Simplify right side
    268.76x = 75,474.59
  5. Step 5: Solve for x
    x = 75,474.59/268.76
  6. Step 6: Final answer
    x = 280.83

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