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Finding the Fourth Proportional to 372.22, 513.58 and 216.88

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Solution

The fourth proportional to 372.22, 513.58 and 216.88 is: 299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.22 : 513.58 = 216.88 : x
  2. Step 2: Convert to fraction form
    372.22/513.58 = 216.88/x
  3. Step 3: Cross multiply
    372.22x = 513.58 × 216.88
  4. Step 4: Simplify right side
    372.22x = 111,385.23
  5. Step 5: Solve for x
    x = 111,385.23/372.22
  6. Step 6: Final answer
    x = 299.25

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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.