Home / 198,818.97-298,218.72-74,150.25

Finding the Fourth Proportional to 198,818.97, 298,218.72 and 74,150.25

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Solution

The fourth proportional to 198,818.97, 298,218.72 and 74,150.25 is: 111,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,818.97 : 298,218.72 = 74,150.25 : x
  2. Step 2: Convert to fraction form
    198,818.97/298,218.72 = 74,150.25/x
  3. Step 3: Cross multiply
    198,818.97x = 298,218.72 × 74,150.25
  4. Step 4: Simplify right side
    198,818.97x = 22,112,992,642.68
  5. Step 5: Solve for x
    x = 22,112,992,642.68/198,818.97
  6. Step 6: Final answer
    x = 111,221.74

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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.