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Finding the Fourth Proportional to 371.83, 557.71 and 234.47

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Solution

The fourth proportional to 371.83, 557.71 and 234.47 is: 351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.83 : 557.71 = 234.47 : x
  2. Step 2: Convert to fraction form
    371.83/557.71 = 234.47/x
  3. Step 3: Cross multiply
    371.83x = 557.71 × 234.47
  4. Step 4: Simplify right side
    371.83x = 130,766.26
  5. Step 5: Solve for x
    x = 130,766.26/371.83
  6. Step 6: Final answer
    x = 351.68

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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.