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Finding the Third Proportional to 99,898 and 214,011

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Solution

The third proportional to 99,898 and 214,011 is: 458,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,898 : 214,011 = 214,011 : x
  2. Step 2: Convert to fraction form
    99,898/214,011 = 214,011/x
  3. Step 3: Cross multiply
    99,898x = 214,011 × 214,011
  4. Step 4: Simplify right side
    99,898x = 45,800,708,121
  5. Step 5: Solve for x
    x = 45,800,708,121/99,898
  6. Step 6: Final answer
    x = 458,474.73

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.