Home / 247,067.31-340,943.94-139,635.12

Finding the Fourth Proportional to 247,067.31, 340,943.94 and 139,635.12

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Solution

The fourth proportional to 247,067.31, 340,943.94 and 139,635.12 is: 192,691.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,067.31 : 340,943.94 = 139,635.12 : x
  2. Step 2: Convert to fraction form
    247,067.31/340,943.94 = 139,635.12/x
  3. Step 3: Cross multiply
    247,067.31x = 340,943.94 × 139,635.12
  4. Step 4: Simplify right side
    247,067.31x = 47,607,747,975.17
  5. Step 5: Solve for x
    x = 47,607,747,975.17/247,067.31
  6. Step 6: Final answer
    x = 192,691.41

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1.5x scale

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.