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Finding the Fourth Proportional to 302.26, 417.26 and 204.17

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Solution

The fourth proportional to 302.26, 417.26 and 204.17 is: 281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.26 : 417.26 = 204.17 : x
  2. Step 2: Convert to fraction form
    302.26/417.26 = 204.17/x
  3. Step 3: Cross multiply
    302.26x = 417.26 × 204.17
  4. Step 4: Simplify right side
    302.26x = 85,191.97
  5. Step 5: Solve for x
    x = 85,191.97/302.26
  6. Step 6: Final answer
    x = 281.85

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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.