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Finding the Fourth Proportional to 611.24, 843.53 and 349.25

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Solution

The fourth proportional to 611.24, 843.53 and 349.25 is: 481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.24 : 843.53 = 349.25 : x
  2. Step 2: Convert to fraction form
    611.24/843.53 = 349.25/x
  3. Step 3: Cross multiply
    611.24x = 843.53 × 349.25
  4. Step 4: Simplify right side
    611.24x = 294,596.89
  5. Step 5: Solve for x
    x = 294,596.89/611.24
  6. Step 6: Final answer
    x = 481.97

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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.