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Finding the Third Proportional to 140,211 and 307,611

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Solution

The third proportional to 140,211 and 307,611 is: 674,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211 : 307,611 = 307,611 : x
  2. Step 2: Convert to fraction form
    140,211/307,611 = 307,611/x
  3. Step 3: Cross multiply
    140,211x = 307,611 × 307,611
  4. Step 4: Simplify right side
    140,211x = 94,624,527,321
  5. Step 5: Solve for x
    x = 94,624,527,321/140,211
  6. Step 6: Final answer
    x = 674,872.35

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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.