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Finding the Fourth Proportional to 343.28, 472.32 and 293.96

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Solution

The fourth proportional to 343.28, 472.32 and 293.96 is: 404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.28 : 472.32 = 293.96 : x
  2. Step 2: Convert to fraction form
    343.28/472.32 = 293.96/x
  3. Step 3: Cross multiply
    343.28x = 472.32 × 293.96
  4. Step 4: Simplify right side
    343.28x = 138,843.19
  5. Step 5: Solve for x
    x = 138,843.19/343.28
  6. Step 6: Final answer
    x = 404.46

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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.