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Finding the Fourth Proportional to 381.11, 567.23 and 372.60

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Solution

The fourth proportional to 381.11, 567.23 and 372.60 is: 554.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.11 : 567.23 = 372.60 : x
  2. Step 2: Convert to fraction form
    381.11/567.23 = 372.60/x
  3. Step 3: Cross multiply
    381.11x = 567.23 × 372.60
  4. Step 4: Simplify right side
    381.11x = 211,348.04
  5. Step 5: Solve for x
    x = 211,348.04/381.11
  6. Step 6: Final answer
    x = 554.57

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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.