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Finding the Fourth Proportional to 371.28, 557.46 and 333.48

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Solution

The fourth proportional to 371.28, 557.46 and 333.48 is: 500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.28 : 557.46 = 333.48 : x
  2. Step 2: Convert to fraction form
    371.28/557.46 = 333.48/x
  3. Step 3: Cross multiply
    371.28x = 557.46 × 333.48
  4. Step 4: Simplify right side
    371.28x = 185,901.76
  5. Step 5: Solve for x
    x = 185,901.76/371.28
  6. Step 6: Final answer
    x = 500.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.