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Finding the Third Proportional to 173,394 and 378,540

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Solution

The third proportional to 173,394 and 378,540 is: 826,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,394 : 378,540 = 378,540 : x
  2. Step 2: Convert to fraction form
    173,394/378,540 = 378,540/x
  3. Step 3: Cross multiply
    173,394x = 378,540 × 378,540
  4. Step 4: Simplify right side
    173,394x = 143,292,531,600
  5. Step 5: Solve for x
    x = 143,292,531,600/173,394
  6. Step 6: Final answer
    x = 826,398.44

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.