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Finding the Third Proportional to 126,447 and 195,778

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Solution

The third proportional to 126,447 and 195,778 is: 303,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,447 : 195,778 = 195,778 : x
  2. Step 2: Convert to fraction form
    126,447/195,778 = 195,778/x
  3. Step 3: Cross multiply
    126,447x = 195,778 × 195,778
  4. Step 4: Simplify right side
    126,447x = 38,329,025,284
  5. Step 5: Solve for x
    x = 38,329,025,284/126,447
  6. Step 6: Final answer
    x = 303,123.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.