Home / 198,215.20-296,715.30-109,196.20

Finding the Fourth Proportional to 198,215.20, 296,715.30 and 109,196.20

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Solution

The fourth proportional to 198,215.20, 296,715.30 and 109,196.20 is: 163,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,215.20 : 296,715.30 = 109,196.20 : x
  2. Step 2: Convert to fraction form
    198,215.20/296,715.30 = 109,196.20/x
  3. Step 3: Cross multiply
    198,215.20x = 296,715.30 × 109,196.20
  4. Step 4: Simplify right side
    198,215.20x = 32,400,183,241.86
  5. Step 5: Solve for x
    x = 32,400,183,241.86/198,215.20
  6. Step 6: Final answer
    x = 163,459.63

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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.