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Finding the Fourth Proportional to 308,930.36, 462,559.22 and 218,601.78

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Solution

The fourth proportional to 308,930.36, 462,559.22 and 218,601.78 is: 327,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,930.36 : 462,559.22 = 218,601.78 : x
  2. Step 2: Convert to fraction form
    308,930.36/462,559.22 = 218,601.78/x
  3. Step 3: Cross multiply
    308,930.36x = 462,559.22 × 218,601.78
  4. Step 4: Simplify right side
    308,930.36x = 101,116,267,754.40
  5. Step 5: Solve for x
    x = 101,116,267,754.40/308,930.36
  6. Step 6: Final answer
    x = 327,310.88

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