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Finding the Fourth Proportional to 366.13, 505.26 and 216.75

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Solution

The fourth proportional to 366.13, 505.26 and 216.75 is: 299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.13 : 505.26 = 216.75 : x
  2. Step 2: Convert to fraction form
    366.13/505.26 = 216.75/x
  3. Step 3: Cross multiply
    366.13x = 505.26 × 216.75
  4. Step 4: Simplify right side
    366.13x = 109,517.00
  5. Step 5: Solve for x
    x = 109,517.00/366.13
  6. Step 6: Final answer
    x = 299.12

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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.