Home / 247,180.12-340,778.70-196,361.54

Finding the Fourth Proportional to 247,180.12, 340,778.70 and 196,361.54

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Solution

The fourth proportional to 247,180.12, 340,778.70 and 196,361.54 is: 270,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,180.12 : 340,778.70 = 196,361.54 : x
  2. Step 2: Convert to fraction form
    247,180.12/340,778.70 = 196,361.54/x
  3. Step 3: Cross multiply
    247,180.12x = 340,778.70 × 196,361.54
  4. Step 4: Simplify right side
    247,180.12x = 66,915,830,331.20
  5. Step 5: Solve for x
    x = 66,915,830,331.20/247,180.12
  6. Step 6: Final answer
    x = 270,716.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.