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Finding the Fourth Proportional to 303,338.60, 454,789.20 and 198,216.80

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Solution

The fourth proportional to 303,338.60, 454,789.20 and 198,216.80 is: 297,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,338.60 : 454,789.20 = 198,216.80 : x
  2. Step 2: Convert to fraction form
    303,338.60/454,789.20 = 198,216.80/x
  3. Step 3: Cross multiply
    303,338.60x = 454,789.20 × 198,216.80
  4. Step 4: Simplify right side
    303,338.60x = 90,146,859,898.56
  5. Step 5: Solve for x
    x = 90,146,859,898.56/303,338.60
  6. Step 6: Final answer
    x = 297,182.29

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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.