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Finding the Fourth Proportional to 225.17, 335.92 and 204.21

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Solution

The fourth proportional to 225.17, 335.92 and 204.21 is: 304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.17 : 335.92 = 204.21 : x
  2. Step 2: Convert to fraction form
    225.17/335.92 = 204.21/x
  3. Step 3: Cross multiply
    225.17x = 335.92 × 204.21
  4. Step 4: Simplify right side
    225.17x = 68,598.22
  5. Step 5: Solve for x
    x = 68,598.22/225.17
  6. Step 6: Final answer
    x = 304.65

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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.