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Finding the Third Proportional to 317,208.38 and 485,859.38

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Solution

The third proportional to 317,208.38 and 485,859.38 is: 744,177.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,208.38 : 485,859.38 = 485,859.38 : x
  2. Step 2: Convert to fraction form
    317,208.38/485,859.38 = 485,859.38/x
  3. Step 3: Cross multiply
    317,208.38x = 485,859.38 × 485,859.38
  4. Step 4: Simplify right side
    317,208.38x = 236,059,332,275.39
  5. Step 5: Solve for x
    x = 236,059,332,275.39/317,208.38
  6. Step 6: Final answer
    x = 744,177.49

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.