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Finding the Third Proportional to 206,467 and 290,752

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Solution

The third proportional to 206,467 and 290,752 is: 409,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,467 : 290,752 = 290,752 : x
  2. Step 2: Convert to fraction form
    206,467/290,752 = 290,752/x
  3. Step 3: Cross multiply
    206,467x = 290,752 × 290,752
  4. Step 4: Simplify right side
    206,467x = 84,536,725,504
  5. Step 5: Solve for x
    x = 84,536,725,504/206,467
  6. Step 6: Final answer
    x = 409,444.25

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.