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Finding the Fourth Proportional to 480.02, 662.44 and 270.20

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Solution

The fourth proportional to 480.02, 662.44 and 270.20 is: 372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.02 : 662.44 = 270.20 : x
  2. Step 2: Convert to fraction form
    480.02/662.44 = 270.20/x
  3. Step 3: Cross multiply
    480.02x = 662.44 × 270.20
  4. Step 4: Simplify right side
    480.02x = 178,991.29
  5. Step 5: Solve for x
    x = 178,991.29/480.02
  6. Step 6: Final answer
    x = 372.88

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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.