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Finding the Fourth Proportional to 303.58, 451.52 and 299.80

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Solution

The fourth proportional to 303.58, 451.52 and 299.80 is: 445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.58 : 451.52 = 299.80 : x
  2. Step 2: Convert to fraction form
    303.58/451.52 = 299.80/x
  3. Step 3: Cross multiply
    303.58x = 451.52 × 299.80
  4. Step 4: Simplify right side
    303.58x = 135,365.70
  5. Step 5: Solve for x
    x = 135,365.70/303.58
  6. Step 6: Final answer
    x = 445.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.