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Finding the Third Proportional to 172,262 and 369,430

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Solution

The third proportional to 172,262 and 369,430 is: 792,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,262 : 369,430 = 369,430 : x
  2. Step 2: Convert to fraction form
    172,262/369,430 = 369,430/x
  3. Step 3: Cross multiply
    172,262x = 369,430 × 369,430
  4. Step 4: Simplify right side
    172,262x = 136,478,524,900
  5. Step 5: Solve for x
    x = 136,478,524,900/172,262
  6. Step 6: Final answer
    x = 792,272.96

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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.