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Finding the Third Proportional to 290,442 and 467,907

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Solution

The third proportional to 290,442 and 467,907 is: 753,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,442 : 467,907 = 467,907 : x
  2. Step 2: Convert to fraction form
    290,442/467,907 = 467,907/x
  3. Step 3: Cross multiply
    290,442x = 467,907 × 467,907
  4. Step 4: Simplify right side
    290,442x = 218,936,960,649
  5. Step 5: Solve for x
    x = 218,936,960,649/290,442
  6. Step 6: Final answer
    x = 753,806.13

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.