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Finding the Third Proportional to 97,819 and 214,390

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Solution

The third proportional to 97,819 and 214,390 is: 469,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,819 : 214,390 = 214,390 : x
  2. Step 2: Convert to fraction form
    97,819/214,390 = 214,390/x
  3. Step 3: Cross multiply
    97,819x = 214,390 × 214,390
  4. Step 4: Simplify right side
    97,819x = 45,963,072,100
  5. Step 5: Solve for x
    x = 45,963,072,100/97,819
  6. Step 6: Final answer
    x = 469,878.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.