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Finding the Third Proportional to 102,987 and 225,657

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Solution

The third proportional to 102,987 and 225,657 is: 494,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,987 : 225,657 = 225,657 : x
  2. Step 2: Convert to fraction form
    102,987/225,657 = 225,657/x
  3. Step 3: Cross multiply
    102,987x = 225,657 × 225,657
  4. Step 4: Simplify right side
    102,987x = 50,921,081,649
  5. Step 5: Solve for x
    x = 50,921,081,649/102,987
  6. Step 6: Final answer
    x = 494,441.84

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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.