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Finding the Third Proportional to 144,902 and 311,227

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Solution

The third proportional to 144,902 and 311,227 is: 668,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,902 : 311,227 = 311,227 : x
  2. Step 2: Convert to fraction form
    144,902/311,227 = 311,227/x
  3. Step 3: Cross multiply
    144,902x = 311,227 × 311,227
  4. Step 4: Simplify right side
    144,902x = 96,862,245,529
  5. Step 5: Solve for x
    x = 96,862,245,529/144,902
  6. Step 6: Final answer
    x = 668,467.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.