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Finding the Third Proportional to 197,566 and 426,721

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Solution

The third proportional to 197,566 and 426,721 is: 921,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,566 : 426,721 = 426,721 : x
  2. Step 2: Convert to fraction form
    197,566/426,721 = 426,721/x
  3. Step 3: Cross multiply
    197,566x = 426,721 × 426,721
  4. Step 4: Simplify right side
    197,566x = 182,090,811,841
  5. Step 5: Solve for x
    x = 182,090,811,841/197,566
  6. Step 6: Final answer
    x = 921,670.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.