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Finding the Fourth Proportional to 480.88, 663.65 and 271.05

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Solution

The fourth proportional to 480.88, 663.65 and 271.05 is: 374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.88 : 663.65 = 271.05 : x
  2. Step 2: Convert to fraction form
    480.88/663.65 = 271.05/x
  3. Step 3: Cross multiply
    480.88x = 663.65 × 271.05
  4. Step 4: Simplify right side
    480.88x = 179,882.33
  5. Step 5: Solve for x
    x = 179,882.33/480.88
  6. Step 6: Final answer
    x = 374.07

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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.