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Finding the Third Proportional to 30,217 and 66,476

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Solution

The third proportional to 30,217 and 66,476 is: 146,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,217 : 66,476 = 66,476 : x
  2. Step 2: Convert to fraction form
    30,217/66,476 = 66,476/x
  3. Step 3: Cross multiply
    30,217x = 66,476 × 66,476
  4. Step 4: Simplify right side
    30,217x = 4,419,058,576
  5. Step 5: Solve for x
    x = 4,419,058,576/30,217
  6. Step 6: Final answer
    x = 146,244.12

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.