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Finding the Fourth Proportional to 513.06, 769.52 and 166.36

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Solution

The fourth proportional to 513.06, 769.52 and 166.36 is: 249.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.06 : 769.52 = 166.36 : x
  2. Step 2: Convert to fraction form
    513.06/769.52 = 166.36/x
  3. Step 3: Cross multiply
    513.06x = 769.52 × 166.36
  4. Step 4: Simplify right side
    513.06x = 128,017.35
  5. Step 5: Solve for x
    x = 128,017.35/513.06
  6. Step 6: Final answer
    x = 249.52

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Double scale
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Similar ratio
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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.