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Finding the Third Proportional to 115,550 and 172,366

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Solution

The third proportional to 115,550 and 172,366 is: 257,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,550 : 172,366 = 172,366 : x
  2. Step 2: Convert to fraction form
    115,550/172,366 = 172,366/x
  3. Step 3: Cross multiply
    115,550x = 172,366 × 172,366
  4. Step 4: Simplify right side
    115,550x = 29,710,037,956
  5. Step 5: Solve for x
    x = 29,710,037,956/115,550
  6. Step 6: Final answer
    x = 257,118.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.