Home / 198,947.35-298,411.30-74,278.63

Finding the Fourth Proportional to 198,947.35, 298,411.30 and 74,278.63

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Solution

The fourth proportional to 198,947.35, 298,411.30 and 74,278.63 is: 111,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,947.35 : 298,411.30 = 74,278.63 : x
  2. Step 2: Convert to fraction form
    198,947.35/298,411.30 = 74,278.63/x
  3. Step 3: Cross multiply
    198,947.35x = 298,411.30 × 74,278.63
  4. Step 4: Simplify right side
    198,947.35x = 22,165,580,677.07
  5. Step 5: Solve for x
    x = 22,165,580,677.07/198,947.35
  6. Step 6: Final answer
    x = 111,414.31

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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.