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Finding the Third Proportional to 140,156 and 211,692

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Solution

The third proportional to 140,156 and 211,692 is: 319,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,156 : 211,692 = 211,692 : x
  2. Step 2: Convert to fraction form
    140,156/211,692 = 211,692/x
  3. Step 3: Cross multiply
    140,156x = 211,692 × 211,692
  4. Step 4: Simplify right side
    140,156x = 44,813,502,864
  5. Step 5: Solve for x
    x = 44,813,502,864/140,156
  6. Step 6: Final answer
    x = 319,740.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.