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Finding the Fourth Proportional to 371.87, 556.51 and 225.54

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Solution

The fourth proportional to 371.87, 556.51 and 225.54 is: 337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.87 : 556.51 = 225.54 : x
  2. Step 2: Convert to fraction form
    371.87/556.51 = 225.54/x
  3. Step 3: Cross multiply
    371.87x = 556.51 × 225.54
  4. Step 4: Simplify right side
    371.87x = 125,514.70
  5. Step 5: Solve for x
    x = 125,514.70/371.87
  6. Step 6: Final answer
    x = 337.52

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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.