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Finding the Third Proportional to 76,815 and 164,286

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Solution

The third proportional to 76,815 and 164,286 is: 351,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815 : 164,286 = 164,286 : x
  2. Step 2: Convert to fraction form
    76,815/164,286 = 164,286/x
  3. Step 3: Cross multiply
    76,815x = 164,286 × 164,286
  4. Step 4: Simplify right side
    76,815x = 26,989,889,796
  5. Step 5: Solve for x
    x = 26,989,889,796/76,815
  6. Step 6: Final answer
    x = 351,362.23

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.