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Finding the Fourth Proportional to 481.86, 717.82 and 451.98

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Solution

The fourth proportional to 481.86, 717.82 and 451.98 is: 673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.86 : 717.82 = 451.98 : x
  2. Step 2: Convert to fraction form
    481.86/717.82 = 451.98/x
  3. Step 3: Cross multiply
    481.86x = 717.82 × 451.98
  4. Step 4: Simplify right side
    481.86x = 324,439.15
  5. Step 5: Solve for x
    x = 324,439.15/481.86
  6. Step 6: Final answer
    x = 673.31

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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.