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Finding the Third Proportional to 172,158 and 263,169

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Solution

The third proportional to 172,158 and 263,169 is: 402,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,158 : 263,169 = 263,169 : x
  2. Step 2: Convert to fraction form
    172,158/263,169 = 263,169/x
  3. Step 3: Cross multiply
    172,158x = 263,169 × 263,169
  4. Step 4: Simplify right side
    172,158x = 69,257,922,561
  5. Step 5: Solve for x
    x = 69,257,922,561/172,158
  6. Step 6: Final answer
    x = 402,292.79

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.