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Finding the Fourth Proportional to 372.97, 555.73 and 356.41

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Solution

The fourth proportional to 372.97, 555.73 and 356.41 is: 531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.97 : 555.73 = 356.41 : x
  2. Step 2: Convert to fraction form
    372.97/555.73 = 356.41/x
  3. Step 3: Cross multiply
    372.97x = 555.73 × 356.41
  4. Step 4: Simplify right side
    372.97x = 198,067.73
  5. Step 5: Solve for x
    x = 198,067.73/372.97
  6. Step 6: Final answer
    x = 531.06

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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.