Home / 256,286.31-353,615.25-148,791.61

Finding the Fourth Proportional to 256,286.31, 353,615.25 and 148,791.61

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Solution

The fourth proportional to 256,286.31, 353,615.25 and 148,791.61 is: 205,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,286.31 : 353,615.25 = 148,791.61 : x
  2. Step 2: Convert to fraction form
    256,286.31/353,615.25 = 148,791.61/x
  3. Step 3: Cross multiply
    256,286.31x = 353,615.25 × 148,791.61
  4. Step 4: Simplify right side
    256,286.31x = 52,614,982,368.05
  5. Step 5: Solve for x
    x = 52,614,982,368.05/256,286.31
  6. Step 6: Final answer
    x = 205,297.67

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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.