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Finding the Fourth Proportional to 259,801.25, 389,713.23 and 82,321.34

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Solution

The fourth proportional to 259,801.25, 389,713.23 and 82,321.34 is: 123,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,801.25 : 389,713.23 = 82,321.34 : x
  2. Step 2: Convert to fraction form
    259,801.25/389,713.23 = 82,321.34/x
  3. Step 3: Cross multiply
    259,801.25x = 389,713.23 × 82,321.34
  4. Step 4: Simplify right side
    259,801.25x = 32,081,715,309.33
  5. Step 5: Solve for x
    x = 32,081,715,309.33/259,801.25
  6. Step 6: Final answer
    x = 123,485.61

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