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Finding the Fourth Proportional to 511.03, 766.55 and 222.47

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Solution

The fourth proportional to 511.03, 766.55 and 222.47 is: 333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.03 : 766.55 = 222.47 : x
  2. Step 2: Convert to fraction form
    511.03/766.55 = 222.47/x
  3. Step 3: Cross multiply
    511.03x = 766.55 × 222.47
  4. Step 4: Simplify right side
    511.03x = 170,533.82
  5. Step 5: Solve for x
    x = 170,533.82/511.03
  6. Step 6: Final answer
    x = 333.70

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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.