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Finding the Third Proportional to 169,131 and 371,742

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Solution

The third proportional to 169,131 and 371,742 is: 817,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,131 : 371,742 = 371,742 : x
  2. Step 2: Convert to fraction form
    169,131/371,742 = 371,742/x
  3. Step 3: Cross multiply
    169,131x = 371,742 × 371,742
  4. Step 4: Simplify right side
    169,131x = 138,192,114,564
  5. Step 5: Solve for x
    x = 138,192,114,564/169,131
  6. Step 6: Final answer
    x = 817,071.47

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.