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Finding the Fourth Proportional to 481.46, 720.80 and 366.36

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Solution

The fourth proportional to 481.46, 720.80 and 366.36 is: 548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.46 : 720.80 = 366.36 : x
  2. Step 2: Convert to fraction form
    481.46/720.80 = 366.36/x
  3. Step 3: Cross multiply
    481.46x = 720.80 × 366.36
  4. Step 4: Simplify right side
    481.46x = 264,072.29
  5. Step 5: Solve for x
    x = 264,072.29/481.46
  6. Step 6: Final answer
    x = 548.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.