Home / 202,418.10-303,821.55-172,869.30

Finding the Fourth Proportional to 202,418.10, 303,821.55 and 172,869.30

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Solution

The fourth proportional to 202,418.10, 303,821.55 and 172,869.30 is: 259,469.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,418.10 : 303,821.55 = 172,869.30 : x
  2. Step 2: Convert to fraction form
    202,418.10/303,821.55 = 172,869.30/x
  3. Step 3: Cross multiply
    202,418.10x = 303,821.55 × 172,869.30
  4. Step 4: Simplify right side
    202,418.10x = 52,521,418,673.42
  5. Step 5: Solve for x
    x = 52,521,418,673.42/202,418.10
  6. Step 6: Final answer
    x = 259,469.97

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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.