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Finding the Third Proportional to 200,984 and 319,926

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Solution

The third proportional to 200,984 and 319,926 is: 509,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,984 : 319,926 = 319,926 : x
  2. Step 2: Convert to fraction form
    200,984/319,926 = 319,926/x
  3. Step 3: Cross multiply
    200,984x = 319,926 × 319,926
  4. Step 4: Simplify right side
    200,984x = 102,352,645,476
  5. Step 5: Solve for x
    x = 102,352,645,476/200,984
  6. Step 6: Final answer
    x = 509,257.68

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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.