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Finding the Third Proportional to 220,920 and 345,596

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Solution

The third proportional to 220,920 and 345,596 is: 540,632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,920 : 345,596 = 345,596 : x
  2. Step 2: Convert to fraction form
    220,920/345,596 = 345,596/x
  3. Step 3: Cross multiply
    220,920x = 345,596 × 345,596
  4. Step 4: Simplify right side
    220,920x = 119,436,595,216
  5. Step 5: Solve for x
    x = 119,436,595,216/220,920
  6. Step 6: Final answer
    x = 540,632.79

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.