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Finding the Third Proportional to 97,512 and 212,864

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Solution

The third proportional to 97,512 and 212,864 is: 464,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,512 : 212,864 = 212,864 : x
  2. Step 2: Convert to fraction form
    97,512/212,864 = 212,864/x
  3. Step 3: Cross multiply
    97,512x = 212,864 × 212,864
  4. Step 4: Simplify right side
    97,512x = 45,311,082,496
  5. Step 5: Solve for x
    x = 45,311,082,496/97,512
  6. Step 6: Final answer
    x = 464,671.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.