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Finding the Fourth Proportional to 349.69, 481.86 and 294.55

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Solution

The fourth proportional to 349.69, 481.86 and 294.55 is: 405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.69 : 481.86 = 294.55 : x
  2. Step 2: Convert to fraction form
    349.69/481.86 = 294.55/x
  3. Step 3: Cross multiply
    349.69x = 481.86 × 294.55
  4. Step 4: Simplify right side
    349.69x = 141,931.86
  5. Step 5: Solve for x
    x = 141,931.86/349.69
  6. Step 6: Final answer
    x = 405.88

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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.