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Finding the Third Proportional to 225,553 and 489,974

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Solution

The third proportional to 225,553 and 489,974 is: 1,064,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,553 : 489,974 = 489,974 : x
  2. Step 2: Convert to fraction form
    225,553/489,974 = 489,974/x
  3. Step 3: Cross multiply
    225,553x = 489,974 × 489,974
  4. Step 4: Simplify right side
    225,553x = 240,074,520,676
  5. Step 5: Solve for x
    x = 240,074,520,676/225,553
  6. Step 6: Final answer
    x = 1,064,381.86

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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.