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Finding the Fourth Proportional to 552.26, 827.95 and 320.88

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Solution

The fourth proportional to 552.26, 827.95 and 320.88 is: 481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.26 : 827.95 = 320.88 : x
  2. Step 2: Convert to fraction form
    552.26/827.95 = 320.88/x
  3. Step 3: Cross multiply
    552.26x = 827.95 × 320.88
  4. Step 4: Simplify right side
    552.26x = 265,672.60
  5. Step 5: Solve for x
    x = 265,672.60/552.26
  6. Step 6: Final answer
    x = 481.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.