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Finding the Third Proportional to 274,137 and 430,137

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Solution

The third proportional to 274,137 and 430,137 is: 674,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,137 : 430,137 = 430,137 : x
  2. Step 2: Convert to fraction form
    274,137/430,137 = 430,137/x
  3. Step 3: Cross multiply
    274,137x = 430,137 × 430,137
  4. Step 4: Simplify right side
    274,137x = 185,017,838,769
  5. Step 5: Solve for x
    x = 185,017,838,769/274,137
  6. Step 6: Final answer
    x = 674,910.13

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.