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Finding the Fourth Proportional to 366.26, 505.38 and 218.96

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Solution

The fourth proportional to 366.26, 505.38 and 218.96 is: 302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.26 : 505.38 = 218.96 : x
  2. Step 2: Convert to fraction form
    366.26/505.38 = 218.96/x
  3. Step 3: Cross multiply
    366.26x = 505.38 × 218.96
  4. Step 4: Simplify right side
    366.26x = 110,658.00
  5. Step 5: Solve for x
    x = 110,658.00/366.26
  6. Step 6: Final answer
    x = 302.13

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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.