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Finding the Fourth Proportional to 348.89, 481.46 and 201.56

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Solution

The fourth proportional to 348.89, 481.46 and 201.56 is: 278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.89 : 481.46 = 201.56 : x
  2. Step 2: Convert to fraction form
    348.89/481.46 = 201.56/x
  3. Step 3: Cross multiply
    348.89x = 481.46 × 201.56
  4. Step 4: Simplify right side
    348.89x = 97,039.66
  5. Step 5: Solve for x
    x = 97,039.66/348.89
  6. Step 6: Final answer
    x = 278.14

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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.