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Finding the Third Proportional to 9,209.50 and 20,211

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Solution

The third proportional to 9,209.50 and 20,211 is: 44,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.50 : 20,211 = 20,211 : x
  2. Step 2: Convert to fraction form
    9,209.50/20,211 = 20,211/x
  3. Step 3: Cross multiply
    9,209.50x = 20,211 × 20,211
  4. Step 4: Simplify right side
    9,209.50x = 408,484,521
  5. Step 5: Solve for x
    x = 408,484,521/9,209.50
  6. Step 6: Final answer
    x = 44,354.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.