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Finding the Fourth Proportional to 300.07, 449.28 and 202.44

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Solution

The fourth proportional to 300.07, 449.28 and 202.44 is: 303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.07 : 449.28 = 202.44 : x
  2. Step 2: Convert to fraction form
    300.07/449.28 = 202.44/x
  3. Step 3: Cross multiply
    300.07x = 449.28 × 202.44
  4. Step 4: Simplify right side
    300.07x = 90,952.24
  5. Step 5: Solve for x
    x = 90,952.24/300.07
  6. Step 6: Final answer
    x = 303.10

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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.