Home / 215,008.10-322,512.15-136,211.30

Finding the Fourth Proportional to 215,008.10, 322,512.15 and 136,211.30

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Solution

The fourth proportional to 215,008.10, 322,512.15 and 136,211.30 is: 204,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,008.10 : 322,512.15 = 136,211.30 : x
  2. Step 2: Convert to fraction form
    215,008.10/322,512.15 = 136,211.30/x
  3. Step 3: Cross multiply
    215,008.10x = 322,512.15 × 136,211.30
  4. Step 4: Simplify right side
    215,008.10x = 43,929,799,217.30
  5. Step 5: Solve for x
    x = 43,929,799,217.30/215,008.10
  6. Step 6: Final answer
    x = 204,316.95

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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.