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Finding the Fourth Proportional to 737.09, 1,105.20 and 298.35

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Solution

The fourth proportional to 737.09, 1,105.20 and 298.35 is: 447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.09 : 1,105.20 = 298.35 : x
  2. Step 2: Convert to fraction form
    737.09/1,105.20 = 298.35/x
  3. Step 3: Cross multiply
    737.09x = 1,105.20 × 298.35
  4. Step 4: Simplify right side
    737.09x = 329,736.42
  5. Step 5: Solve for x
    x = 329,736.42/737.09
  6. Step 6: Final answer
    x = 447.35

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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.