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Finding the Fourth Proportional to 366.83, 506.21 and 219.45

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Solution

The fourth proportional to 366.83, 506.21 and 219.45 is: 302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.83 : 506.21 = 219.45 : x
  2. Step 2: Convert to fraction form
    366.83/506.21 = 219.45/x
  3. Step 3: Cross multiply
    366.83x = 506.21 × 219.45
  4. Step 4: Simplify right side
    366.83x = 111,086.69
  5. Step 5: Solve for x
    x = 111,086.69/366.83
  6. Step 6: Final answer
    x = 302.83

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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.