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Finding the Fourth Proportional to 372.88, 514.92 and 235.12

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Solution

The fourth proportional to 372.88, 514.92 and 235.12 is: 324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.88 : 514.92 = 235.12 : x
  2. Step 2: Convert to fraction form
    372.88/514.92 = 235.12/x
  3. Step 3: Cross multiply
    372.88x = 514.92 × 235.12
  4. Step 4: Simplify right side
    372.88x = 121,067.99
  5. Step 5: Solve for x
    x = 121,067.99/372.88
  6. Step 6: Final answer
    x = 324.68

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