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Finding the Third Proportional to 207,238 and 329,540

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Solution

The third proportional to 207,238 and 329,540 is: 524,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,238 : 329,540 = 329,540 : x
  2. Step 2: Convert to fraction form
    207,238/329,540 = 329,540/x
  3. Step 3: Cross multiply
    207,238x = 329,540 × 329,540
  4. Step 4: Simplify right side
    207,238x = 108,596,611,600
  5. Step 5: Solve for x
    x = 108,596,611,600/207,238
  6. Step 6: Final answer
    x = 524,018.82

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.