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Finding the Third Proportional to 66,730 and 146,829

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Solution

The third proportional to 66,730 and 146,829 is: 323,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730 : 146,829 = 146,829 : x
  2. Step 2: Convert to fraction form
    66,730/146,829 = 146,829/x
  3. Step 3: Cross multiply
    66,730x = 146,829 × 146,829
  4. Step 4: Simplify right side
    66,730x = 21,558,755,241
  5. Step 5: Solve for x
    x = 21,558,755,241/66,730
  6. Step 6: Final answer
    x = 323,074.41

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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.