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Finding the Fourth Proportional to 353.46, 487.75 and 204.04

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Solution

The fourth proportional to 353.46, 487.75 and 204.04 is: 281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.46 : 487.75 = 204.04 : x
  2. Step 2: Convert to fraction form
    353.46/487.75 = 204.04/x
  3. Step 3: Cross multiply
    353.46x = 487.75 × 204.04
  4. Step 4: Simplify right side
    353.46x = 99,520.51
  5. Step 5: Solve for x
    x = 99,520.51/353.46
  6. Step 6: Final answer
    x = 281.56

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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.