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Finding the Fourth Proportional to 480.72, 663.39 and 268.03

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Solution

The fourth proportional to 480.72, 663.39 and 268.03 is: 369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.72 : 663.39 = 268.03 : x
  2. Step 2: Convert to fraction form
    480.72/663.39 = 268.03/x
  3. Step 3: Cross multiply
    480.72x = 663.39 × 268.03
  4. Step 4: Simplify right side
    480.72x = 177,808.42
  5. Step 5: Solve for x
    x = 177,808.42/480.72
  6. Step 6: Final answer
    x = 369.88

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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.