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Finding the Third Proportional to 156,976 and 343,294

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Solution

The third proportional to 156,976 and 343,294 is: 750,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976 : 343,294 = 343,294 : x
  2. Step 2: Convert to fraction form
    156,976/343,294 = 343,294/x
  3. Step 3: Cross multiply
    156,976x = 343,294 × 343,294
  4. Step 4: Simplify right side
    156,976x = 117,850,770,436
  5. Step 5: Solve for x
    x = 117,850,770,436/156,976
  6. Step 6: Final answer
    x = 750,756.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.