Home / 257,824.56-386,747.31-122,819.22

Finding the Fourth Proportional to 257,824.56, 386,747.31 and 122,819.22

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Solution

The fourth proportional to 257,824.56, 386,747.31 and 122,819.22 is: 184,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,824.56 : 386,747.31 = 122,819.22 : x
  2. Step 2: Convert to fraction form
    257,824.56/386,747.31 = 122,819.22/x
  3. Step 3: Cross multiply
    257,824.56x = 386,747.31 × 122,819.22
  4. Step 4: Simplify right side
    257,824.56x = 47,500,002,951.30
  5. Step 5: Solve for x
    x = 47,500,002,951.30/257,824.56
  6. Step 6: Final answer
    x = 184,233.82

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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.