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Finding the Third Proportional to 279,579.09 and 430,363.13

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Solution

The third proportional to 279,579.09 and 430,363.13 is: 662,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,579.09 : 430,363.13 = 430,363.13 : x
  2. Step 2: Convert to fraction form
    279,579.09/430,363.13 = 430,363.13/x
  3. Step 3: Cross multiply
    279,579.09x = 430,363.13 × 430,363.13
  4. Step 4: Simplify right side
    279,579.09x = 185,212,419,359.77
  5. Step 5: Solve for x
    x = 185,212,419,359.77/279,579.09
  6. Step 6: Final answer
    x = 662,468.77

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.