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Finding the Fourth Proportional to 276,809.51, 381,997.13 and 149,485.10

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Solution

The fourth proportional to 276,809.51, 381,997.13 and 149,485.10 is: 206,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,809.51 : 381,997.13 = 149,485.10 : x
  2. Step 2: Convert to fraction form
    276,809.51/381,997.13 = 149,485.10/x
  3. Step 3: Cross multiply
    276,809.51x = 381,997.13 × 149,485.10
  4. Step 4: Simplify right side
    276,809.51x = 57,102,876,520.35
  5. Step 5: Solve for x
    x = 57,102,876,520.35/276,809.51
  6. Step 6: Final answer
    x = 206,289.43

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