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Finding the Third Proportional to 207,476 and 320,426

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Solution

The third proportional to 207,476 and 320,426 is: 494,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,476 : 320,426 = 320,426 : x
  2. Step 2: Convert to fraction form
    207,476/320,426 = 320,426/x
  3. Step 3: Cross multiply
    207,476x = 320,426 × 320,426
  4. Step 4: Simplify right side
    207,476x = 102,672,821,476
  5. Step 5: Solve for x
    x = 102,672,821,476/207,476
  6. Step 6: Final answer
    x = 494,866.02

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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.