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Finding the Fourth Proportional to 172,806, 259,209 and 41,478

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Solution

The fourth proportional to 172,806, 259,209 and 41,478 is: 62,217

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,806 : 259,209 = 41,478 : x
  2. Step 2: Convert to fraction form
    172,806/259,209 = 41,478/x
  3. Step 3: Cross multiply
    172,806x = 259,209 × 41,478
  4. Step 4: Simplify right side
    172,806x = 10,751,470,902
  5. Step 5: Solve for x
    x = 10,751,470,902/172,806
  6. Step 6: Final answer
    x = 62,217

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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.