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Finding the Fourth Proportional to 225.84, 337.06 and 205.28

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Solution

The fourth proportional to 225.84, 337.06 and 205.28 is: 306.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.84 : 337.06 = 205.28 : x
  2. Step 2: Convert to fraction form
    225.84/337.06 = 205.28/x
  3. Step 3: Cross multiply
    225.84x = 337.06 × 205.28
  4. Step 4: Simplify right side
    225.84x = 69,191.68
  5. Step 5: Solve for x
    x = 69,191.68/225.84
  6. Step 6: Final answer
    x = 306.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.