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Finding the Third Proportional to 30,228 and 66,292

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Solution

The third proportional to 30,228 and 66,292 is: 145,382.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228 : 66,292 = 66,292 : x
  2. Step 2: Convert to fraction form
    30,228/66,292 = 66,292/x
  3. Step 3: Cross multiply
    30,228x = 66,292 × 66,292
  4. Step 4: Simplify right side
    30,228x = 4,394,629,264
  5. Step 5: Solve for x
    x = 4,394,629,264/30,228
  6. Step 6: Final answer
    x = 145,382.73

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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.