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Finding the Fourth Proportional to 481.50, 660.06 and 473.28

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Solution

The fourth proportional to 481.50, 660.06 and 473.28 is: 648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.50 : 660.06 = 473.28 : x
  2. Step 2: Convert to fraction form
    481.50/660.06 = 473.28/x
  3. Step 3: Cross multiply
    481.50x = 660.06 × 473.28
  4. Step 4: Simplify right side
    481.50x = 312,393.20
  5. Step 5: Solve for x
    x = 312,393.20/481.50
  6. Step 6: Final answer
    x = 648.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.