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Finding the Fourth Proportional to 411.38, 566.90 and 263.76

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Solution

The fourth proportional to 411.38, 566.90 and 263.76 is: 363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.38 : 566.90 = 263.76 : x
  2. Step 2: Convert to fraction form
    411.38/566.90 = 263.76/x
  3. Step 3: Cross multiply
    411.38x = 566.90 × 263.76
  4. Step 4: Simplify right side
    411.38x = 149,525.54
  5. Step 5: Solve for x
    x = 149,525.54/411.38
  6. Step 6: Final answer
    x = 363.47

Related Problems

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.