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Finding the Fourth Proportional to 259,947.80, 389,630.10 and 133,539.20

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Solution

The fourth proportional to 259,947.80, 389,630.10 and 133,539.20 is: 200,159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,947.80 : 389,630.10 = 133,539.20 : x
  2. Step 2: Convert to fraction form
    259,947.80/389,630.10 = 133,539.20/x
  3. Step 3: Cross multiply
    259,947.80x = 389,630.10 × 133,539.20
  4. Step 4: Simplify right side
    259,947.80x = 52,030,891,849.92
  5. Step 5: Solve for x
    x = 52,030,891,849.92/259,947.80
  6. Step 6: Final answer
    x = 200,159.00

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