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Finding the Fourth Proportional to 259,632.80, 389,449.20 and 224,640.80

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Solution

The fourth proportional to 259,632.80, 389,449.20 and 224,640.80 is: 336,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,632.80 : 389,449.20 = 224,640.80 : x
  2. Step 2: Convert to fraction form
    259,632.80/389,449.20 = 224,640.80/x
  3. Step 3: Cross multiply
    259,632.80x = 389,449.20 × 224,640.80
  4. Step 4: Simplify right side
    259,632.80x = 87,486,179,847.36
  5. Step 5: Solve for x
    x = 87,486,179,847.36/259,632.80
  6. Step 6: Final answer
    x = 336,961.20

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