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Finding the Fourth Proportional to 511.76, 767.64 and 234.26

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Solution

The fourth proportional to 511.76, 767.64 and 234.26 is: 351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.76 : 767.64 = 234.26 : x
  2. Step 2: Convert to fraction form
    511.76/767.64 = 234.26/x
  3. Step 3: Cross multiply
    511.76x = 767.64 × 234.26
  4. Step 4: Simplify right side
    511.76x = 179,827.35
  5. Step 5: Solve for x
    x = 179,827.35/511.76
  6. Step 6: Final answer
    x = 351.39

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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.