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Finding the Third Proportional to 187,139 and 410,512

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Solution

The third proportional to 187,139 and 410,512 is: 900,507.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,139 : 410,512 = 410,512 : x
  2. Step 2: Convert to fraction form
    187,139/410,512 = 410,512/x
  3. Step 3: Cross multiply
    187,139x = 410,512 × 410,512
  4. Step 4: Simplify right side
    187,139x = 168,520,102,144
  5. Step 5: Solve for x
    x = 168,520,102,144/187,139
  6. Step 6: Final answer
    x = 900,507.66

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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.