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Finding the Third Proportional to 140,045 and 210,171

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Solution

The third proportional to 140,045 and 210,171 is: 315,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,045 : 210,171 = 210,171 : x
  2. Step 2: Convert to fraction form
    140,045/210,171 = 210,171/x
  3. Step 3: Cross multiply
    140,045x = 210,171 × 210,171
  4. Step 4: Simplify right side
    140,045x = 44,171,849,241
  5. Step 5: Solve for x
    x = 44,171,849,241/140,045
  6. Step 6: Final answer
    x = 315,411.83

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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.