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Finding the Fourth Proportional to 481.64, 717.35 and 451.67

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Solution

The fourth proportional to 481.64, 717.35 and 451.67 is: 672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.64 : 717.35 = 451.67 : x
  2. Step 2: Convert to fraction form
    481.64/717.35 = 451.67/x
  3. Step 3: Cross multiply
    481.64x = 717.35 × 451.67
  4. Step 4: Simplify right side
    481.64x = 324,005.47
  5. Step 5: Solve for x
    x = 324,005.47/481.64
  6. Step 6: Final answer
    x = 672.71

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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.