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Finding the Third Proportional to 220,919 and 337,804

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Solution

The third proportional to 220,919 and 337,804 is: 516,531.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,919 : 337,804 = 337,804 : x
  2. Step 2: Convert to fraction form
    220,919/337,804 = 337,804/x
  3. Step 3: Cross multiply
    220,919x = 337,804 × 337,804
  4. Step 4: Simplify right side
    220,919x = 114,111,542,416
  5. Step 5: Solve for x
    x = 114,111,542,416/220,919
  6. Step 6: Final answer
    x = 516,531.14

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.