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Finding the Fourth Proportional to 480.41, 662.81 and 270.55

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Solution

The fourth proportional to 480.41, 662.81 and 270.55 is: 373.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.41 : 662.81 = 270.55 : x
  2. Step 2: Convert to fraction form
    480.41/662.81 = 270.55/x
  3. Step 3: Cross multiply
    480.41x = 662.81 × 270.55
  4. Step 4: Simplify right side
    480.41x = 179,323.25
  5. Step 5: Solve for x
    x = 179,323.25/480.41
  6. Step 6: Final answer
    x = 373.27

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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.