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Finding the Third Proportional to 85,212 and 185,288

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Solution

The third proportional to 85,212 and 185,288 is: 402,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212 : 185,288 = 185,288 : x
  2. Step 2: Convert to fraction form
    85,212/185,288 = 185,288/x
  3. Step 3: Cross multiply
    85,212x = 185,288 × 185,288
  4. Step 4: Simplify right side
    85,212x = 34,331,642,944
  5. Step 5: Solve for x
    x = 34,331,642,944/85,212
  6. Step 6: Final answer
    x = 402,896.81

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.