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Finding the Fourth Proportional to 269,231.20, 403,846.80 and 91,938.40

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Solution

The fourth proportional to 269,231.20, 403,846.80 and 91,938.40 is: 137,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,231.20 : 403,846.80 = 91,938.40 : x
  2. Step 2: Convert to fraction form
    269,231.20/403,846.80 = 91,938.40/x
  3. Step 3: Cross multiply
    269,231.20x = 403,846.80 × 91,938.40
  4. Step 4: Simplify right side
    269,231.20x = 37,129,028,637.12
  5. Step 5: Solve for x
    x = 37,129,028,637.12/269,231.20
  6. Step 6: Final answer
    x = 137,907.60

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