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Finding the Third Proportional to 144,996 and 319,424

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Solution

The third proportional to 144,996 and 319,424 is: 703,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,996 : 319,424 = 319,424 : x
  2. Step 2: Convert to fraction form
    144,996/319,424 = 319,424/x
  3. Step 3: Cross multiply
    144,996x = 319,424 × 319,424
  4. Step 4: Simplify right side
    144,996x = 102,031,691,776
  5. Step 5: Solve for x
    x = 102,031,691,776/144,996
  6. Step 6: Final answer
    x = 703,686.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.