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Finding the Fourth Proportional to 606, 908.94 and 281.16

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Solution

The fourth proportional to 606, 908.94 and 281.16 is: 421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    606 : 908.94 = 281.16 : x
  2. Step 2: Convert to fraction form
    606/908.94 = 281.16/x
  3. Step 3: Cross multiply
    606x = 908.94 × 281.16
  4. Step 4: Simplify right side
    606x = 255,557.57
  5. Step 5: Solve for x
    x = 255,557.57/606
  6. Step 6: Final answer
    x = 421.71

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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.