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Finding the Fourth Proportional to 349.05, 484.92 and 345.88

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Solution

The fourth proportional to 349.05, 484.92 and 345.88 is: 480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.05 : 484.92 = 345.88 : x
  2. Step 2: Convert to fraction form
    349.05/484.92 = 345.88/x
  3. Step 3: Cross multiply
    349.05x = 484.92 × 345.88
  4. Step 4: Simplify right side
    349.05x = 167,719.98
  5. Step 5: Solve for x
    x = 167,719.98/349.05
  6. Step 6: Final answer
    x = 480.51

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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.