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Finding the Fourth Proportional to 552.16, 827.42 and 511.66

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Solution

The fourth proportional to 552.16, 827.42 and 511.66 is: 766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.16 : 827.42 = 511.66 : x
  2. Step 2: Convert to fraction form
    552.16/827.42 = 511.66/x
  3. Step 3: Cross multiply
    552.16x = 827.42 × 511.66
  4. Step 4: Simplify right side
    552.16x = 423,357.72
  5. Step 5: Solve for x
    x = 423,357.72/552.16
  6. Step 6: Final answer
    x = 766.73

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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.