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Finding the Third Proportional to 155,910 and 336,768

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Solution

The third proportional to 155,910 and 336,768 is: 727,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,910 : 336,768 = 336,768 : x
  2. Step 2: Convert to fraction form
    155,910/336,768 = 336,768/x
  3. Step 3: Cross multiply
    155,910x = 336,768 × 336,768
  4. Step 4: Simplify right side
    155,910x = 113,412,685,824
  5. Step 5: Solve for x
    x = 113,412,685,824/155,910
  6. Step 6: Final answer
    x = 727,424.06

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.