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Finding the Third Proportional to 99,515 and 210,262

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Solution

The third proportional to 99,515 and 210,262 is: 444,255.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515 : 210,262 = 210,262 : x
  2. Step 2: Convert to fraction form
    99,515/210,262 = 210,262/x
  3. Step 3: Cross multiply
    99,515x = 210,262 × 210,262
  4. Step 4: Simplify right side
    99,515x = 44,210,108,644
  5. Step 5: Solve for x
    x = 44,210,108,644/99,515
  6. Step 6: Final answer
    x = 444,255.73

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.