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Finding the Fourth Proportional to 300.60, 449.98 and 248.08

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Solution

The fourth proportional to 300.60, 449.98 and 248.08 is: 371.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.60 : 449.98 = 248.08 : x
  2. Step 2: Convert to fraction form
    300.60/449.98 = 248.08/x
  3. Step 3: Cross multiply
    300.60x = 449.98 × 248.08
  4. Step 4: Simplify right side
    300.60x = 111,631.04
  5. Step 5: Solve for x
    x = 111,631.04/300.60
  6. Step 6: Final answer
    x = 371.36

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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.