Home / 198,948.60-298,413.17-74,279.88

Finding the Fourth Proportional to 198,948.60, 298,413.17 and 74,279.88

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Solution

The fourth proportional to 198,948.60, 298,413.17 and 74,279.88 is: 111,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,948.60 : 298,413.17 = 74,279.88 : x
  2. Step 2: Convert to fraction form
    198,948.60/298,413.17 = 74,279.88/x
  3. Step 3: Cross multiply
    198,948.60x = 298,413.17 × 74,279.88
  4. Step 4: Simplify right side
    198,948.60x = 22,166,094,458.02
  5. Step 5: Solve for x
    x = 22,166,094,458.02/198,948.60
  6. Step 6: Final answer
    x = 111,416.19

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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.