Home / 198,947.60-298,411.67-74,278.88

Finding the Fourth Proportional to 198,947.60, 298,411.67 and 74,278.88

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Solution

The fourth proportional to 198,947.60, 298,411.67 and 74,278.88 is: 111,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,947.60 : 298,411.67 = 74,278.88 : x
  2. Step 2: Convert to fraction form
    198,947.60/298,411.67 = 74,278.88/x
  3. Step 3: Cross multiply
    198,947.60x = 298,411.67 × 74,278.88
  4. Step 4: Simplify right side
    198,947.60x = 22,165,683,320.17
  5. Step 5: Solve for x
    x = 22,165,683,320.17/198,947.60
  6. Step 6: Final answer
    x = 111,414.68

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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.