Home / 203,820.41-305,778.92-200,431.47

Finding the Fourth Proportional to 203,820.41, 305,778.92 and 200,431.47

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Solution

The fourth proportional to 203,820.41, 305,778.92 and 200,431.47 is: 300,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,820.41 : 305,778.92 = 200,431.47 : x
  2. Step 2: Convert to fraction form
    203,820.41/305,778.92 = 200,431.47/x
  3. Step 3: Cross multiply
    203,820.41x = 305,778.92 × 200,431.47
  4. Step 4: Simplify right side
    203,820.41x = 61,287,718,575.13
  5. Step 5: Solve for x
    x = 61,287,718,575.13/203,820.41
  6. Step 6: Final answer
    x = 300,694.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.