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Finding the Fourth Proportional to 300.62, 450.06 and 275.66

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Solution

The fourth proportional to 300.62, 450.06 and 275.66 is: 412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.62 : 450.06 = 275.66 : x
  2. Step 2: Convert to fraction form
    300.62/450.06 = 275.66/x
  3. Step 3: Cross multiply
    300.62x = 450.06 × 275.66
  4. Step 4: Simplify right side
    300.62x = 124,063.54
  5. Step 5: Solve for x
    x = 124,063.54/300.62
  6. Step 6: Final answer
    x = 412.69

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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.