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Finding the Third Proportional to 172,140 and 369,183

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Solution

The third proportional to 172,140 and 369,183 is: 791,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,140 : 369,183 = 369,183 : x
  2. Step 2: Convert to fraction form
    172,140/369,183 = 369,183/x
  3. Step 3: Cross multiply
    172,140x = 369,183 × 369,183
  4. Step 4: Simplify right side
    172,140x = 136,296,087,489
  5. Step 5: Solve for x
    x = 136,296,087,489/172,140
  6. Step 6: Final answer
    x = 791,774.65

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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.