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Finding the Fourth Proportional to 279,972.30, 419,958.45 and 92,983.80

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Solution

The fourth proportional to 279,972.30, 419,958.45 and 92,983.80 is: 139,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,972.30 : 419,958.45 = 92,983.80 : x
  2. Step 2: Convert to fraction form
    279,972.30/419,958.45 = 92,983.80/x
  3. Step 3: Cross multiply
    279,972.30x = 419,958.45 × 92,983.80
  4. Step 4: Simplify right side
    279,972.30x = 39,049,332,523.11
  5. Step 5: Solve for x
    x = 39,049,332,523.11/279,972.30
  6. Step 6: Final answer
    x = 139,475.70

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