Home / 204,971.18-307,324.28-80,324.78

Finding the Fourth Proportional to 204,971.18, 307,324.28 and 80,324.78

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Solution

The fourth proportional to 204,971.18, 307,324.28 and 80,324.78 is: 120,435.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,971.18 : 307,324.28 = 80,324.78 : x
  2. Step 2: Convert to fraction form
    204,971.18/307,324.28 = 80,324.78/x
  3. Step 3: Cross multiply
    204,971.18x = 307,324.28 × 80,324.78
  4. Step 4: Simplify right side
    204,971.18x = 24,685,755,179.66
  5. Step 5: Solve for x
    x = 24,685,755,179.66/204,971.18
  6. Step 6: Final answer
    x = 120,435.25

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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.