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Finding the Fourth Proportional to 366.98, 506.30 and 219.56

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Solution

The fourth proportional to 366.98, 506.30 and 219.56 is: 302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.98 : 506.30 = 219.56 : x
  2. Step 2: Convert to fraction form
    366.98/506.30 = 219.56/x
  3. Step 3: Cross multiply
    366.98x = 506.30 × 219.56
  4. Step 4: Simplify right side
    366.98x = 111,159.60
  5. Step 5: Solve for x
    x = 111,159.60/366.98
  6. Step 6: Final answer
    x = 302.91

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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.