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Finding the Fourth Proportional to 511.44, 767.52 and 396.15

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Solution

The fourth proportional to 511.44, 767.52 and 396.15 is: 594.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.44 : 767.52 = 396.15 : x
  2. Step 2: Convert to fraction form
    511.44/767.52 = 396.15/x
  3. Step 3: Cross multiply
    511.44x = 767.52 × 396.15
  4. Step 4: Simplify right side
    511.44x = 304,053.05
  5. Step 5: Solve for x
    x = 304,053.05/511.44
  6. Step 6: Final answer
    x = 594.50

Related Problems

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Half scale
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Double scale
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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.