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Finding the Fourth Proportional to 519.69, 779.52 and 173.03

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Solution

The fourth proportional to 519.69, 779.52 and 173.03 is: 259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.69 : 779.52 = 173.03 : x
  2. Step 2: Convert to fraction form
    519.69/779.52 = 173.03/x
  3. Step 3: Cross multiply
    519.69x = 779.52 × 173.03
  4. Step 4: Simplify right side
    519.69x = 134,876.45
  5. Step 5: Solve for x
    x = 134,876.45/519.69
  6. Step 6: Final answer
    x = 259.53

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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.