Home / 198,959.22-298,429.11-74,290.50

Finding the Fourth Proportional to 198,959.22, 298,429.11 and 74,290.50

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Solution

The fourth proportional to 198,959.22, 298,429.11 and 74,290.50 is: 111,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,959.22 : 298,429.11 = 74,290.50 : x
  2. Step 2: Convert to fraction form
    198,959.22/298,429.11 = 74,290.50/x
  3. Step 3: Cross multiply
    198,959.22x = 298,429.11 × 74,290.50
  4. Step 4: Simplify right side
    198,959.22x = 22,170,447,796.46
  5. Step 5: Solve for x
    x = 22,170,447,796.46/198,959.22
  6. Step 6: Final answer
    x = 111,432.12

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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.