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Finding the Fourth Proportional to 269,998.40, 404,997.60 and 80,458.40

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Solution

The fourth proportional to 269,998.40, 404,997.60 and 80,458.40 is: 120,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,998.40 : 404,997.60 = 80,458.40 : x
  2. Step 2: Convert to fraction form
    269,998.40/404,997.60 = 80,458.40/x
  3. Step 3: Cross multiply
    269,998.40x = 404,997.60 × 80,458.40
  4. Step 4: Simplify right side
    269,998.40x = 32,585,458,899.84
  5. Step 5: Solve for x
    x = 32,585,458,899.84/269,998.40
  6. Step 6: Final answer
    x = 120,687.60

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