Home / 320,865.74-443,003.61-206,188.57

Finding the Fourth Proportional to 320,865.74, 443,003.61 and 206,188.57

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Solution

The fourth proportional to 320,865.74, 443,003.61 and 206,188.57 is: 284,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,865.74 : 443,003.61 = 206,188.57 : x
  2. Step 2: Convert to fraction form
    320,865.74/443,003.61 = 206,188.57/x
  3. Step 3: Cross multiply
    320,865.74x = 443,003.61 × 206,188.57
  4. Step 4: Simplify right side
    320,865.74x = 91,342,278,635.72
  5. Step 5: Solve for x
    x = 91,342,278,635.72/320,865.74
  6. Step 6: Final answer
    x = 284,674.46

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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.