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Finding the Fourth Proportional to 372.54, 556.17 and 338.52

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Solution

The fourth proportional to 372.54, 556.17 and 338.52 is: 505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.54 : 556.17 = 338.52 : x
  2. Step 2: Convert to fraction form
    372.54/556.17 = 338.52/x
  3. Step 3: Cross multiply
    372.54x = 556.17 × 338.52
  4. Step 4: Simplify right side
    372.54x = 188,274.67
  5. Step 5: Solve for x
    x = 188,274.67/372.54
  6. Step 6: Final answer
    x = 505.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.