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Finding the Fourth Proportional to 326,127.20, 489,190.80 and 231,648.80

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Solution

The fourth proportional to 326,127.20, 489,190.80 and 231,648.80 is: 347,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,127.20 : 489,190.80 = 231,648.80 : x
  2. Step 2: Convert to fraction form
    326,127.20/489,190.80 = 231,648.80/x
  3. Step 3: Cross multiply
    326,127.20x = 489,190.80 × 231,648.80
  4. Step 4: Simplify right side
    326,127.20x = 113,320,461,791.04
  5. Step 5: Solve for x
    x = 113,320,461,791.04/326,127.20
  6. Step 6: Final answer
    x = 347,473.20

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