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Finding the Third Proportional to 140,436 and 210,436

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Solution

The third proportional to 140,436 and 210,436 is: 315,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,436 : 210,436 = 210,436 : x
  2. Step 2: Convert to fraction form
    140,436/210,436 = 210,436/x
  3. Step 3: Cross multiply
    140,436x = 210,436 × 210,436
  4. Step 4: Simplify right side
    140,436x = 44,283,310,096
  5. Step 5: Solve for x
    x = 44,283,310,096/140,436
  6. Step 6: Final answer
    x = 315,327.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.