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Finding the Fourth Proportional to 207,344.10, 311,016.15 and 74,228.70

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Solution

The fourth proportional to 207,344.10, 311,016.15 and 74,228.70 is: 111,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,344.10 : 311,016.15 = 74,228.70 : x
  2. Step 2: Convert to fraction form
    207,344.10/311,016.15 = 74,228.70/x
  3. Step 3: Cross multiply
    207,344.10x = 311,016.15 × 74,228.70
  4. Step 4: Simplify right side
    207,344.10x = 23,086,324,493.51
  5. Step 5: Solve for x
    x = 23,086,324,493.51/207,344.10
  6. Step 6: Final answer
    x = 111,343.05

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