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Finding the Fourth Proportional to 274,671.21, 379,010.32 and 158,388.97

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Solution

The fourth proportional to 274,671.21, 379,010.32 and 158,388.97 is: 218,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,671.21 : 379,010.32 = 158,388.97 : x
  2. Step 2: Convert to fraction form
    274,671.21/379,010.32 = 158,388.97/x
  3. Step 3: Cross multiply
    274,671.21x = 379,010.32 × 158,388.97
  4. Step 4: Simplify right side
    274,671.21x = 60,031,054,456.96
  5. Step 5: Solve for x
    x = 60,031,054,456.96/274,671.21
  6. Step 6: Final answer
    x = 218,556.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.