Home / 373,743.75-515,759.17-203,979.09

Finding the Fourth Proportional to 373,743.75, 515,759.17 and 203,979.09

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Solution

The fourth proportional to 373,743.75, 515,759.17 and 203,979.09 is: 281,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,743.75 : 515,759.17 = 203,979.09 : x
  2. Step 2: Convert to fraction form
    373,743.75/515,759.17 = 203,979.09/x
  3. Step 3: Cross multiply
    373,743.75x = 515,759.17 × 203,979.09
  4. Step 4: Simplify right side
    373,743.75x = 105,204,086,155.76
  5. Step 5: Solve for x
    x = 105,204,086,155.76/373,743.75
  6. Step 6: Final answer
    x = 281,487.21

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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.