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Finding the Fourth Proportional to 511.26, 771.18 and 481.32

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Solution

The fourth proportional to 511.26, 771.18 and 481.32 is: 726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.26 : 771.18 = 481.32 : x
  2. Step 2: Convert to fraction form
    511.26/771.18 = 481.32/x
  3. Step 3: Cross multiply
    511.26x = 771.18 × 481.32
  4. Step 4: Simplify right side
    511.26x = 371,184.36
  5. Step 5: Solve for x
    x = 371,184.36/511.26
  6. Step 6: Final answer
    x = 726.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.