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Finding the Fourth Proportional to 221,408.20, 332,112.30 and 203,037.40

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Solution

The fourth proportional to 221,408.20, 332,112.30 and 203,037.40 is: 304,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,408.20 : 332,112.30 = 203,037.40 : x
  2. Step 2: Convert to fraction form
    221,408.20/332,112.30 = 203,037.40/x
  3. Step 3: Cross multiply
    221,408.20x = 332,112.30 × 203,037.40
  4. Step 4: Simplify right side
    221,408.20x = 67,431,217,900.02
  5. Step 5: Solve for x
    x = 67,431,217,900.02/221,408.20
  6. Step 6: Final answer
    x = 304,556.10

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1.5x scale

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.