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Finding the Fourth Proportional to 392.62, 589.14 and 301.48

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Solution

The fourth proportional to 392.62, 589.14 and 301.48 is: 452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.62 : 589.14 = 301.48 : x
  2. Step 2: Convert to fraction form
    392.62/589.14 = 301.48/x
  3. Step 3: Cross multiply
    392.62x = 589.14 × 301.48
  4. Step 4: Simplify right side
    392.62x = 177,613.93
  5. Step 5: Solve for x
    x = 177,613.93/392.62
  6. Step 6: Final answer
    x = 452.38

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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.