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Finding the Third Proportional to 275,174 and 425,310

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Solution

The third proportional to 275,174 and 425,310 is: 657,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,174 : 425,310 = 425,310 : x
  2. Step 2: Convert to fraction form
    275,174/425,310 = 425,310/x
  3. Step 3: Cross multiply
    275,174x = 425,310 × 425,310
  4. Step 4: Simplify right side
    275,174x = 180,888,596,100
  5. Step 5: Solve for x
    x = 180,888,596,100/275,174
  6. Step 6: Final answer
    x = 657,360.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.