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Finding the Fourth Proportional to 371.62, 556.44 and 188.56

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Solution

The fourth proportional to 371.62, 556.44 and 188.56 is: 282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.62 : 556.44 = 188.56 : x
  2. Step 2: Convert to fraction form
    371.62/556.44 = 188.56/x
  3. Step 3: Cross multiply
    371.62x = 556.44 × 188.56
  4. Step 4: Simplify right side
    371.62x = 104,922.33
  5. Step 5: Solve for x
    x = 104,922.33/371.62
  6. Step 6: Final answer
    x = 282.34

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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.