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Finding the Third Proportional to 103,626 and 216,636

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Solution

The third proportional to 103,626 and 216,636 is: 452,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626 : 216,636 = 216,636 : x
  2. Step 2: Convert to fraction form
    103,626/216,636 = 216,636/x
  3. Step 3: Cross multiply
    103,626x = 216,636 × 216,636
  4. Step 4: Simplify right side
    103,626x = 46,931,156,496
  5. Step 5: Solve for x
    x = 46,931,156,496/103,626
  6. Step 6: Final answer
    x = 452,889.78

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.