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Finding the Fourth Proportional to 269,218.80, 403,828.20 and 265,719.60

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Solution

The fourth proportional to 269,218.80, 403,828.20 and 265,719.60 is: 398,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,218.80 : 403,828.20 = 265,719.60 : x
  2. Step 2: Convert to fraction form
    269,218.80/403,828.20 = 265,719.60/x
  3. Step 3: Cross multiply
    269,218.80x = 403,828.20 × 265,719.60
  4. Step 4: Simplify right side
    269,218.80x = 107,305,067,772.72
  5. Step 5: Solve for x
    x = 107,305,067,772.72/269,218.80
  6. Step 6: Final answer
    x = 398,579.40

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