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Finding the Third Proportional to 209,749 and 454,490

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Solution

The third proportional to 209,749 and 454,490 is: 984,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,749 : 454,490 = 454,490 : x
  2. Step 2: Convert to fraction form
    209,749/454,490 = 454,490/x
  3. Step 3: Cross multiply
    209,749x = 454,490 × 454,490
  4. Step 4: Simplify right side
    209,749x = 206,561,160,100
  5. Step 5: Solve for x
    x = 206,561,160,100/209,749
  6. Step 6: Final answer
    x = 984,801.64

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.