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Finding the Third Proportional to 87,510 and 191,964

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Solution

The third proportional to 87,510 and 191,964 is: 421,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,510 : 191,964 = 191,964 : x
  2. Step 2: Convert to fraction form
    87,510/191,964 = 191,964/x
  3. Step 3: Cross multiply
    87,510x = 191,964 × 191,964
  4. Step 4: Simplify right side
    87,510x = 36,850,177,296
  5. Step 5: Solve for x
    x = 36,850,177,296/87,510
  6. Step 6: Final answer
    x = 421,096.76

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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.