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Finding the Fourth Proportional to 186.27, 278.96 and 131.91

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Solution

The fourth proportional to 186.27, 278.96 and 131.91 is: 197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.27 : 278.96 = 131.91 : x
  2. Step 2: Convert to fraction form
    186.27/278.96 = 131.91/x
  3. Step 3: Cross multiply
    186.27x = 278.96 × 131.91
  4. Step 4: Simplify right side
    186.27x = 36,796.95
  5. Step 5: Solve for x
    x = 36,796.95/186.27
  6. Step 6: Final answer
    x = 197.55

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