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Finding the Fourth Proportional to 342.91, 473.41 and 249.56

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Solution

The fourth proportional to 342.91, 473.41 and 249.56 is: 344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.91 : 473.41 = 249.56 : x
  2. Step 2: Convert to fraction form
    342.91/473.41 = 249.56/x
  3. Step 3: Cross multiply
    342.91x = 473.41 × 249.56
  4. Step 4: Simplify right side
    342.91x = 118,143.92
  5. Step 5: Solve for x
    x = 118,143.92/342.91
  6. Step 6: Final answer
    x = 344.53

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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.