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Finding the Third Proportional to 102,561 and 155,207

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Solution

The third proportional to 102,561 and 155,207 is: 234,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,561 : 155,207 = 155,207 : x
  2. Step 2: Convert to fraction form
    102,561/155,207 = 155,207/x
  3. Step 3: Cross multiply
    102,561x = 155,207 × 155,207
  4. Step 4: Simplify right side
    102,561x = 24,089,212,849
  5. Step 5: Solve for x
    x = 24,089,212,849/102,561
  6. Step 6: Final answer
    x = 234,876.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.