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Finding the Fourth Proportional to 381,793.85, 526,844.78 and 220,659.33

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Solution

The fourth proportional to 381,793.85, 526,844.78 and 220,659.33 is: 304,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,793.85 : 526,844.78 = 220,659.33 : x
  2. Step 2: Convert to fraction form
    381,793.85/526,844.78 = 220,659.33/x
  3. Step 3: Cross multiply
    381,793.85x = 526,844.78 × 220,659.33
  4. Step 4: Simplify right side
    381,793.85x = 116,253,215,065.50
  5. Step 5: Solve for x
    x = 116,253,215,065.50/381,793.85
  6. Step 6: Final answer
    x = 304,492.11

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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.