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Finding the Fourth Proportional to 511.06, 766.59 and 202.76

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Solution

The fourth proportional to 511.06, 766.59 and 202.76 is: 304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.06 : 766.59 = 202.76 : x
  2. Step 2: Convert to fraction form
    511.06/766.59 = 202.76/x
  3. Step 3: Cross multiply
    511.06x = 766.59 × 202.76
  4. Step 4: Simplify right side
    511.06x = 155,429.96
  5. Step 5: Solve for x
    x = 155,429.96/511.06
  6. Step 6: Final answer
    x = 304.13

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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.