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Finding the Fourth Proportional to 304,640.56, 420,403.92 and 170,504.56

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Solution

The fourth proportional to 304,640.56, 420,403.92 and 170,504.56 is: 235,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,640.56 : 420,403.92 = 170,504.56 : x
  2. Step 2: Convert to fraction form
    304,640.56/420,403.92 = 170,504.56/x
  3. Step 3: Cross multiply
    304,640.56x = 420,403.92 × 170,504.56
  4. Step 4: Simplify right side
    304,640.56x = 71,680,785,401.88
  5. Step 5: Solve for x
    x = 71,680,785,401.88/304,640.56
  6. Step 6: Final answer
    x = 235,296.26

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