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Finding the Fourth Proportional to 276.06, 380.96 and 151.71

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Solution

The fourth proportional to 276.06, 380.96 and 151.71 is: 209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.06 : 380.96 = 151.71 : x
  2. Step 2: Convert to fraction form
    276.06/380.96 = 151.71/x
  3. Step 3: Cross multiply
    276.06x = 380.96 × 151.71
  4. Step 4: Simplify right side
    276.06x = 57,796.70
  5. Step 5: Solve for x
    x = 57,796.70/276.06
  6. Step 6: Final answer
    x = 209.36

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