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Finding the Third Proportional to 279,936.75 and 425,089.13

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Solution

The third proportional to 279,936.75 and 425,089.13 is: 645,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936.75 : 425,089.13 = 425,089.13 : x
  2. Step 2: Convert to fraction form
    279,936.75/425,089.13 = 425,089.13/x
  3. Step 3: Cross multiply
    279,936.75x = 425,089.13 × 425,089.13
  4. Step 4: Simplify right side
    279,936.75x = 180,700,764,193.27
  5. Step 5: Solve for x
    x = 180,700,764,193.27/279,936.75
  6. Step 6: Final answer
    x = 645,505.69

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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.