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Finding the Third Proportional to 142,449 and 303,964

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Solution

The third proportional to 142,449 and 303,964 is: 648,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,449 : 303,964 = 303,964 : x
  2. Step 2: Convert to fraction form
    142,449/303,964 = 303,964/x
  3. Step 3: Cross multiply
    142,449x = 303,964 × 303,964
  4. Step 4: Simplify right side
    142,449x = 92,394,113,296
  5. Step 5: Solve for x
    x = 92,394,113,296/142,449
  6. Step 6: Final answer
    x = 648,611.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.