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Finding the Fourth Proportional to 300.03, 447.88 and 279.75

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Solution

The fourth proportional to 300.03, 447.88 and 279.75 is: 417.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.03 : 447.88 = 279.75 : x
  2. Step 2: Convert to fraction form
    300.03/447.88 = 279.75/x
  3. Step 3: Cross multiply
    300.03x = 447.88 × 279.75
  4. Step 4: Simplify right side
    300.03x = 125,295.93
  5. Step 5: Solve for x
    x = 125,295.93/300.03
  6. Step 6: Final answer
    x = 417.61

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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.