Home / 198,946.85-298,410.55-74,278.13

Finding the Fourth Proportional to 198,946.85, 298,410.55 and 74,278.13

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Solution

The fourth proportional to 198,946.85, 298,410.55 and 74,278.13 is: 111,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,946.85 : 298,410.55 = 74,278.13 : x
  2. Step 2: Convert to fraction form
    198,946.85/298,410.55 = 74,278.13/x
  3. Step 3: Cross multiply
    198,946.85x = 298,410.55 × 74,278.13
  4. Step 4: Simplify right side
    198,946.85x = 22,165,375,948.52
  5. Step 5: Solve for x
    x = 22,165,375,948.52/198,946.85
  6. Step 6: Final answer
    x = 111,413.56

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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.