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Finding the Fourth Proportional to 486.36, 725.27 and 481.97

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Solution

The fourth proportional to 486.36, 725.27 and 481.97 is: 718.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.36 : 725.27 = 481.97 : x
  2. Step 2: Convert to fraction form
    486.36/725.27 = 481.97/x
  3. Step 3: Cross multiply
    486.36x = 725.27 × 481.97
  4. Step 4: Simplify right side
    486.36x = 349,552.35
  5. Step 5: Solve for x
    x = 349,552.35/486.36
  6. Step 6: Final answer
    x = 718.71

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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.