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Finding the Fourth Proportional to 311,947.20, 467,920.80 and 125,092.80

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Solution

The fourth proportional to 311,947.20, 467,920.80 and 125,092.80 is: 187,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,947.20 : 467,920.80 = 125,092.80 : x
  2. Step 2: Convert to fraction form
    311,947.20/467,920.80 = 125,092.80/x
  3. Step 3: Cross multiply
    311,947.20x = 467,920.80 × 125,092.80
  4. Step 4: Simplify right side
    311,947.20x = 58,533,523,050.24
  5. Step 5: Solve for x
    x = 58,533,523,050.24/311,947.20
  6. Step 6: Final answer
    x = 187,639.20

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