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Finding the Third Proportional to 133,090 and 191,311

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Solution

The third proportional to 133,090 and 191,311 is: 275,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090 : 191,311 = 191,311 : x
  2. Step 2: Convert to fraction form
    133,090/191,311 = 191,311/x
  3. Step 3: Cross multiply
    133,090x = 191,311 × 191,311
  4. Step 4: Simplify right side
    133,090x = 36,599,898,721
  5. Step 5: Solve for x
    x = 36,599,898,721/133,090
  6. Step 6: Final answer
    x = 275,001.12

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.