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Finding the Fourth Proportional to 516.06, 774.23 and 169.45

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Solution

The fourth proportional to 516.06, 774.23 and 169.45 is: 254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.06 : 774.23 = 169.45 : x
  2. Step 2: Convert to fraction form
    516.06/774.23 = 169.45/x
  3. Step 3: Cross multiply
    516.06x = 774.23 × 169.45
  4. Step 4: Simplify right side
    516.06x = 131,190.49
  5. Step 5: Solve for x
    x = 131,190.49/516.06
  6. Step 6: Final answer
    x = 254.22

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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.