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Finding the Third Proportional to 200,976 and 319,914

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Solution

The third proportional to 200,976 and 319,914 is: 509,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,976 : 319,914 = 319,914 : x
  2. Step 2: Convert to fraction form
    200,976/319,914 = 319,914/x
  3. Step 3: Cross multiply
    200,976x = 319,914 × 319,914
  4. Step 4: Simplify right side
    200,976x = 102,344,967,396
  5. Step 5: Solve for x
    x = 102,344,967,396/200,976
  6. Step 6: Final answer
    x = 509,239.75

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.