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Finding the Fourth Proportional to 397,415.64, 548,155.98 and 269,869.80

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Solution

The fourth proportional to 397,415.64, 548,155.98 and 269,869.80 is: 372,231.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,415.64 : 548,155.98 = 269,869.80 : x
  2. Step 2: Convert to fraction form
    397,415.64/548,155.98 = 269,869.80/x
  3. Step 3: Cross multiply
    397,415.64x = 548,155.98 × 269,869.80
  4. Step 4: Simplify right side
    397,415.64x = 147,930,744,691.40
  5. Step 5: Solve for x
    x = 147,930,744,691.40/397,415.64
  6. Step 6: Final answer
    x = 372,231.81

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