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Finding the Fourth Proportional to 481.06, 668.33 and 475.30

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Solution

The fourth proportional to 481.06, 668.33 and 475.30 is: 660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.06 : 668.33 = 475.30 : x
  2. Step 2: Convert to fraction form
    481.06/668.33 = 475.30/x
  3. Step 3: Cross multiply
    481.06x = 668.33 × 475.30
  4. Step 4: Simplify right side
    481.06x = 317,655.69
  5. Step 5: Solve for x
    x = 317,655.69/481.06
  6. Step 6: Final answer
    x = 660.33

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.