Home / 198,949.60-298,414.67-74,280.88

Finding the Fourth Proportional to 198,949.60, 298,414.67 and 74,280.88

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Solution

The fourth proportional to 198,949.60, 298,414.67 and 74,280.88 is: 111,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,949.60 : 298,414.67 = 74,280.88 : x
  2. Step 2: Convert to fraction form
    198,949.60/298,414.67 = 74,280.88/x
  3. Step 3: Cross multiply
    198,949.60x = 298,414.67 × 74,280.88
  4. Step 4: Simplify right side
    198,949.60x = 22,166,504,292.51
  5. Step 5: Solve for x
    x = 22,166,504,292.51/198,949.60
  6. Step 6: Final answer
    x = 111,417.69

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1.5x scale

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.