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Finding the Third Proportional to 163,948 and 386,866

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Solution

The third proportional to 163,948 and 386,866 is: 912,882.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,948 : 386,866 = 386,866 : x
  2. Step 2: Convert to fraction form
    163,948/386,866 = 386,866/x
  3. Step 3: Cross multiply
    163,948x = 386,866 × 386,866
  4. Step 4: Simplify right side
    163,948x = 149,665,301,956
  5. Step 5: Solve for x
    x = 149,665,301,956/163,948
  6. Step 6: Final answer
    x = 912,882.76

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.