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Finding the Third Proportional to 197,474 and 305,859

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Solution

The third proportional to 197,474 and 305,859 is: 473,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,474 : 305,859 = 305,859 : x
  2. Step 2: Convert to fraction form
    197,474/305,859 = 305,859/x
  3. Step 3: Cross multiply
    197,474x = 305,859 × 305,859
  4. Step 4: Simplify right side
    197,474x = 93,549,727,881
  5. Step 5: Solve for x
    x = 93,549,727,881/197,474
  6. Step 6: Final answer
    x = 473,731.87

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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.