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Finding the Fourth Proportional to 263,310.80, 394,966.20 and 174,664.40

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Solution

The fourth proportional to 263,310.80, 394,966.20 and 174,664.40 is: 261,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,310.80 : 394,966.20 = 174,664.40 : x
  2. Step 2: Convert to fraction form
    263,310.80/394,966.20 = 174,664.40/x
  3. Step 3: Cross multiply
    263,310.80x = 394,966.20 × 174,664.40
  4. Step 4: Simplify right side
    263,310.80x = 68,986,534,343.28
  5. Step 5: Solve for x
    x = 68,986,534,343.28/263,310.80
  6. Step 6: Final answer
    x = 261,996.60

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