Home / 247,947.20-371,920.80-148,414.40

Finding the Fourth Proportional to 247,947.20, 371,920.80 and 148,414.40

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Solution

The fourth proportional to 247,947.20, 371,920.80 and 148,414.40 is: 222,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,947.20 : 371,920.80 = 148,414.40 : x
  2. Step 2: Convert to fraction form
    247,947.20/371,920.80 = 148,414.40/x
  3. Step 3: Cross multiply
    247,947.20x = 371,920.80 × 148,414.40
  4. Step 4: Simplify right side
    247,947.20x = 55,198,402,379.52
  5. Step 5: Solve for x
    x = 55,198,402,379.52/247,947.20
  6. Step 6: Final answer
    x = 222,621.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.