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Finding the Fourth Proportional to 576.99, 865.80 and 252.27

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Solution

The fourth proportional to 576.99, 865.80 and 252.27 is: 378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.99 : 865.80 = 252.27 : x
  2. Step 2: Convert to fraction form
    576.99/865.80 = 252.27/x
  3. Step 3: Cross multiply
    576.99x = 865.80 × 252.27
  4. Step 4: Simplify right side
    576.99x = 218,415.37
  5. Step 5: Solve for x
    x = 218,415.37/576.99
  6. Step 6: Final answer
    x = 378.54

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Similar ratio
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1.5x scale

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.