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Finding the Fourth Proportional to 441.75, 609.69 and 294.75

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Solution

The fourth proportional to 441.75, 609.69 and 294.75 is: 406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.75 : 609.69 = 294.75 : x
  2. Step 2: Convert to fraction form
    441.75/609.69 = 294.75/x
  3. Step 3: Cross multiply
    441.75x = 609.69 × 294.75
  4. Step 4: Simplify right side
    441.75x = 179,706.13
  5. Step 5: Solve for x
    x = 179,706.13/441.75
  6. Step 6: Final answer
    x = 406.81

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Find fourth proportional to 220.88, 304.85 and 147.38
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Double scale
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Similar ratio
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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.