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Finding the Fourth Proportional to 348.68, 481.38 and 243.83

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Solution

The fourth proportional to 348.68, 481.38 and 243.83 is: 336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.68 : 481.38 = 243.83 : x
  2. Step 2: Convert to fraction form
    348.68/481.38 = 243.83/x
  3. Step 3: Cross multiply
    348.68x = 481.38 × 243.83
  4. Step 4: Simplify right side
    348.68x = 117,374.89
  5. Step 5: Solve for x
    x = 117,374.89/348.68
  6. Step 6: Final answer
    x = 336.63

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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.