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Finding the Fourth Proportional to 218,524.72, 327,821.56 and 78,280.24

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Solution

The fourth proportional to 218,524.72, 327,821.56 and 78,280.24 is: 117,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,524.72 : 327,821.56 = 78,280.24 : x
  2. Step 2: Convert to fraction form
    218,524.72/327,821.56 = 78,280.24/x
  3. Step 3: Cross multiply
    218,524.72x = 327,821.56 × 78,280.24
  4. Step 4: Simplify right side
    218,524.72x = 25,661,950,393.97
  5. Step 5: Solve for x
    x = 25,661,950,393.97/218,524.72
  6. Step 6: Final answer
    x = 117,432.71

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