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Finding the Fourth Proportional to 481.53, 663.53 and 332.20

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Solution

The fourth proportional to 481.53, 663.53 and 332.20 is: 457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.53 : 663.53 = 332.20 : x
  2. Step 2: Convert to fraction form
    481.53/663.53 = 332.20/x
  3. Step 3: Cross multiply
    481.53x = 663.53 × 332.20
  4. Step 4: Simplify right side
    481.53x = 220,424.67
  5. Step 5: Solve for x
    x = 220,424.67/481.53
  6. Step 6: Final answer
    x = 457.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.