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Finding the Fourth Proportional to 372.60, 514.25 and 225.28

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Solution

The fourth proportional to 372.60, 514.25 and 225.28 is: 310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.60 : 514.25 = 225.28 : x
  2. Step 2: Convert to fraction form
    372.60/514.25 = 225.28/x
  3. Step 3: Cross multiply
    372.60x = 514.25 × 225.28
  4. Step 4: Simplify right side
    372.60x = 115,850.60
  5. Step 5: Solve for x
    x = 115,850.60/372.60
  6. Step 6: Final answer
    x = 310.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.