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Finding the Third Proportional to 162,575 and 217,455

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Solution

The third proportional to 162,575 and 217,455 is: 290,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,575 : 217,455 = 217,455 : x
  2. Step 2: Convert to fraction form
    162,575/217,455 = 217,455/x
  3. Step 3: Cross multiply
    162,575x = 217,455 × 217,455
  4. Step 4: Simplify right side
    162,575x = 47,286,677,025
  5. Step 5: Solve for x
    x = 47,286,677,025/162,575
  6. Step 6: Final answer
    x = 290,860.69

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.