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Finding the Fourth Proportional to 269,556.80, 404,335.20 and 266,057.60

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Solution

The fourth proportional to 269,556.80, 404,335.20 and 266,057.60 is: 399,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,556.80 : 404,335.20 = 266,057.60 : x
  2. Step 2: Convert to fraction form
    269,556.80/404,335.20 = 266,057.60/x
  3. Step 3: Cross multiply
    269,556.80x = 404,335.20 × 266,057.60
  4. Step 4: Simplify right side
    269,556.80x = 107,576,452,907.52
  5. Step 5: Solve for x
    x = 107,576,452,907.52/269,556.80
  6. Step 6: Final answer
    x = 399,086.40

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