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Finding the Fourth Proportional to 491,861.30, 737,152.83 and 221,791.10

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Solution

The fourth proportional to 491,861.30, 737,152.83 and 221,791.10 is: 332,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,861.30 : 737,152.83 = 221,791.10 : x
  2. Step 2: Convert to fraction form
    491,861.30/737,152.83 = 221,791.10/x
  3. Step 3: Cross multiply
    491,861.30x = 737,152.83 × 221,791.10
  4. Step 4: Simplify right side
    491,861.30x = 163,493,933,348.05
  5. Step 5: Solve for x
    x = 163,493,933,348.05/491,861.30
  6. Step 6: Final answer
    x = 332,398.45

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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.