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Finding the Fourth Proportional to 207,375.20, 310,806.80 and 140,815.20

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Solution

The fourth proportional to 207,375.20, 310,806.80 and 140,815.20 is: 211,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,375.20 : 310,806.80 = 140,815.20 : x
  2. Step 2: Convert to fraction form
    207,375.20/310,806.80 = 140,815.20/x
  3. Step 3: Cross multiply
    207,375.20x = 310,806.80 × 140,815.20
  4. Step 4: Simplify right side
    207,375.20x = 43,766,321,703.36
  5. Step 5: Solve for x
    x = 43,766,321,703.36/207,375.20
  6. Step 6: Final answer
    x = 211,048.97

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