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Finding the Third Proportional to 161,928 and 253,488

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Solution

The third proportional to 161,928 and 253,488 is: 396,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,928 : 253,488 = 253,488 : x
  2. Step 2: Convert to fraction form
    161,928/253,488 = 253,488/x
  3. Step 3: Cross multiply
    161,928x = 253,488 × 253,488
  4. Step 4: Simplify right side
    161,928x = 64,256,166,144
  5. Step 5: Solve for x
    x = 64,256,166,144/161,928
  6. Step 6: Final answer
    x = 396,819.37

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.