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Finding the Third Proportional to 197,444 and 288,760

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Solution

The third proportional to 197,444 and 288,760 is: 422,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,444 : 288,760 = 288,760 : x
  2. Step 2: Convert to fraction form
    197,444/288,760 = 288,760/x
  3. Step 3: Cross multiply
    197,444x = 288,760 × 288,760
  4. Step 4: Simplify right side
    197,444x = 83,382,337,600
  5. Step 5: Solve for x
    x = 83,382,337,600/197,444
  6. Step 6: Final answer
    x = 422,308.79

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.