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Finding the Third Proportional to 279,949.50 and 425,108.25

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Solution

The third proportional to 279,949.50 and 425,108.25 is: 645,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,949.50 : 425,108.25 = 425,108.25 : x
  2. Step 2: Convert to fraction form
    279,949.50/425,108.25 = 425,108.25/x
  3. Step 3: Cross multiply
    279,949.50x = 425,108.25 × 425,108.25
  4. Step 4: Simplify right side
    279,949.50x = 180,717,024,218.06
  5. Step 5: Solve for x
    x = 180,717,024,218.06/279,949.50
  6. Step 6: Final answer
    x = 645,534.37

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.