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Finding the Fourth Proportional to 528.92, 793.59 and 255.25

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Solution

The fourth proportional to 528.92, 793.59 and 255.25 is: 382.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.92 : 793.59 = 255.25 : x
  2. Step 2: Convert to fraction form
    528.92/793.59 = 255.25/x
  3. Step 3: Cross multiply
    528.92x = 793.59 × 255.25
  4. Step 4: Simplify right side
    528.92x = 202,563.85
  5. Step 5: Solve for x
    x = 202,563.85/528.92
  6. Step 6: Final answer
    x = 382.98

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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.