Home / 198,234.20-296,743.80-109,215.20

Finding the Fourth Proportional to 198,234.20, 296,743.80 and 109,215.20

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Solution

The fourth proportional to 198,234.20, 296,743.80 and 109,215.20 is: 163,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,234.20 : 296,743.80 = 109,215.20 : x
  2. Step 2: Convert to fraction form
    198,234.20/296,743.80 = 109,215.20/x
  3. Step 3: Cross multiply
    198,234.20x = 296,743.80 × 109,215.20
  4. Step 4: Simplify right side
    198,234.20x = 32,408,933,465.76
  5. Step 5: Solve for x
    x = 32,408,933,465.76/198,234.20
  6. Step 6: Final answer
    x = 163,488.10

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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.