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Finding the Third Proportional to 198,964 and 432,556

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Solution

The third proportional to 198,964 and 432,556 is: 940,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,964 : 432,556 = 432,556 : x
  2. Step 2: Convert to fraction form
    198,964/432,556 = 432,556/x
  3. Step 3: Cross multiply
    198,964x = 432,556 × 432,556
  4. Step 4: Simplify right side
    198,964x = 187,104,693,136
  5. Step 5: Solve for x
    x = 187,104,693,136/198,964
  6. Step 6: Final answer
    x = 940,394.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.