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Finding the Third Proportional to 173,215 and 372,215

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Solution

The third proportional to 173,215 and 372,215 is: 799,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,215 : 372,215 = 372,215 : x
  2. Step 2: Convert to fraction form
    173,215/372,215 = 372,215/x
  3. Step 3: Cross multiply
    173,215x = 372,215 × 372,215
  4. Step 4: Simplify right side
    173,215x = 138,544,006,225
  5. Step 5: Solve for x
    x = 138,544,006,225/173,215
  6. Step 6: Final answer
    x = 799,838.39

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.