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Finding the Third Proportional to 102,070 and 218,906

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Solution

The third proportional to 102,070 and 218,906 is: 469,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,070 : 218,906 = 218,906 : x
  2. Step 2: Convert to fraction form
    102,070/218,906 = 218,906/x
  3. Step 3: Cross multiply
    102,070x = 218,906 × 218,906
  4. Step 4: Simplify right side
    102,070x = 47,919,836,836
  5. Step 5: Solve for x
    x = 47,919,836,836/102,070
  6. Step 6: Final answer
    x = 469,480.13

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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.