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Finding the Third Proportional to 139,374 and 306,882

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Solution

The third proportional to 139,374 and 306,882 is: 675,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,374 : 306,882 = 306,882 : x
  2. Step 2: Convert to fraction form
    139,374/306,882 = 306,882/x
  3. Step 3: Cross multiply
    139,374x = 306,882 × 306,882
  4. Step 4: Simplify right side
    139,374x = 94,176,561,924
  5. Step 5: Solve for x
    x = 94,176,561,924/139,374
  6. Step 6: Final answer
    x = 675,711.12

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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.