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Finding the Third Proportional to 30,287 and 66,344

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Solution

The third proportional to 30,287 and 66,344 is: 145,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287 : 66,344 = 66,344 : x
  2. Step 2: Convert to fraction form
    30,287/66,344 = 66,344/x
  3. Step 3: Cross multiply
    30,287x = 66,344 × 66,344
  4. Step 4: Simplify right side
    30,287x = 4,401,526,336
  5. Step 5: Solve for x
    x = 4,401,526,336/30,287
  6. Step 6: Final answer
    x = 145,327.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.