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Finding the Fourth Proportional to 332,840.80, 499,261.20 and 206,869.60

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Solution

The fourth proportional to 332,840.80, 499,261.20 and 206,869.60 is: 310,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,840.80 : 499,261.20 = 206,869.60 : x
  2. Step 2: Convert to fraction form
    332,840.80/499,261.20 = 206,869.60/x
  3. Step 3: Cross multiply
    332,840.80x = 499,261.20 × 206,869.60
  4. Step 4: Simplify right side
    332,840.80x = 103,281,964,739.52
  5. Step 5: Solve for x
    x = 103,281,964,739.52/332,840.80
  6. Step 6: Final answer
    x = 310,304.40

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