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Finding the Fourth Proportional to 611.24, 843.56 and 349.27

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Solution

The fourth proportional to 611.24, 843.56 and 349.27 is: 482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.24 : 843.56 = 349.27 : x
  2. Step 2: Convert to fraction form
    611.24/843.56 = 349.27/x
  3. Step 3: Cross multiply
    611.24x = 843.56 × 349.27
  4. Step 4: Simplify right side
    611.24x = 294,630.20
  5. Step 5: Solve for x
    x = 294,630.20/611.24
  6. Step 6: Final answer
    x = 482.02

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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.