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Finding the Fourth Proportional to 479.91, 662.25 and 270.09

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Solution

The fourth proportional to 479.91, 662.25 and 270.09 is: 372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.91 : 662.25 = 270.09 : x
  2. Step 2: Convert to fraction form
    479.91/662.25 = 270.09/x
  3. Step 3: Cross multiply
    479.91x = 662.25 × 270.09
  4. Step 4: Simplify right side
    479.91x = 178,867.10
  5. Step 5: Solve for x
    x = 178,867.10/479.91
  6. Step 6: Final answer
    x = 372.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.