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Finding the Fourth Proportional to 372.36, 514.02 and 217.16

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Solution

The fourth proportional to 372.36, 514.02 and 217.16 is: 299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.36 : 514.02 = 217.16 : x
  2. Step 2: Convert to fraction form
    372.36/514.02 = 217.16/x
  3. Step 3: Cross multiply
    372.36x = 514.02 × 217.16
  4. Step 4: Simplify right side
    372.36x = 111,624.58
  5. Step 5: Solve for x
    x = 111,624.58/372.36
  6. Step 6: Final answer
    x = 299.78

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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.