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Finding the Fourth Proportional to 349.41, 484.26 and 342.93

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Solution

The fourth proportional to 349.41, 484.26 and 342.93 is: 475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.41 : 484.26 = 342.93 : x
  2. Step 2: Convert to fraction form
    349.41/484.26 = 342.93/x
  3. Step 3: Cross multiply
    349.41x = 484.26 × 342.93
  4. Step 4: Simplify right side
    349.41x = 166,067.28
  5. Step 5: Solve for x
    x = 166,067.28/349.41
  6. Step 6: Final answer
    x = 475.28

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.