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Finding the Third Proportional to 192,636 and 418,644

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Solution

The third proportional to 192,636 and 418,644 is: 909,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,636 : 418,644 = 418,644 : x
  2. Step 2: Convert to fraction form
    192,636/418,644 = 418,644/x
  3. Step 3: Cross multiply
    192,636x = 418,644 × 418,644
  4. Step 4: Simplify right side
    192,636x = 175,262,798,736
  5. Step 5: Solve for x
    x = 175,262,798,736/192,636
  6. Step 6: Final answer
    x = 909,813.32

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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.