Home / 274,456.35-378,982.26-172,514.64

Finding the Fourth Proportional to 274,456.35, 378,982.26 and 172,514.64

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Solution

The fourth proportional to 274,456.35, 378,982.26 and 172,514.64 is: 238,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,456.35 : 378,982.26 = 172,514.64 : x
  2. Step 2: Convert to fraction form
    274,456.35/378,982.26 = 172,514.64/x
  3. Step 3: Cross multiply
    274,456.35x = 378,982.26 × 172,514.64
  4. Step 4: Simplify right side
    274,456.35x = 65,379,988,150.29
  5. Step 5: Solve for x
    x = 65,379,988,150.29/274,456.35
  6. Step 6: Final answer
    x = 238,216.34

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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.