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Finding the Fourth Proportional to 366.39, 505.68 and 226.53

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Solution

The fourth proportional to 366.39, 505.68 and 226.53 is: 312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.39 : 505.68 = 226.53 : x
  2. Step 2: Convert to fraction form
    366.39/505.68 = 226.53/x
  3. Step 3: Cross multiply
    366.39x = 505.68 × 226.53
  4. Step 4: Simplify right side
    366.39x = 114,550.84
  5. Step 5: Solve for x
    x = 114,550.84/366.39
  6. Step 6: Final answer
    x = 312.65

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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.