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Finding the Third Proportional to 205,398 and 307,287

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Solution

The third proportional to 205,398 and 307,287 is: 459,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,398 : 307,287 = 307,287 : x
  2. Step 2: Convert to fraction form
    205,398/307,287 = 307,287/x
  3. Step 3: Cross multiply
    205,398x = 307,287 × 307,287
  4. Step 4: Simplify right side
    205,398x = 94,425,300,369
  5. Step 5: Solve for x
    x = 94,425,300,369/205,398
  6. Step 6: Final answer
    x = 459,718.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.