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Finding the Fourth Proportional to 223.65, 337.38 and 223.19

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Solution

The fourth proportional to 223.65, 337.38 and 223.19 is: 336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.65 : 337.38 = 223.19 : x
  2. Step 2: Convert to fraction form
    223.65/337.38 = 223.19/x
  3. Step 3: Cross multiply
    223.65x = 337.38 × 223.19
  4. Step 4: Simplify right side
    223.65x = 75,299.84
  5. Step 5: Solve for x
    x = 75,299.84/223.65
  6. Step 6: Final answer
    x = 336.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.