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Finding the Third Proportional to 157,917 and 214,395

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Solution

The third proportional to 157,917 and 214,395 is: 291,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,917 : 214,395 = 214,395 : x
  2. Step 2: Convert to fraction form
    157,917/214,395 = 214,395/x
  3. Step 3: Cross multiply
    157,917x = 214,395 × 214,395
  4. Step 4: Simplify right side
    157,917x = 45,965,216,025
  5. Step 5: Solve for x
    x = 45,965,216,025/157,917
  6. Step 6: Final answer
    x = 291,071.99

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.