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Finding the Fourth Proportional to 411.92, 568.43 and 246.22

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Solution

The fourth proportional to 411.92, 568.43 and 246.22 is: 339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.92 : 568.43 = 246.22 : x
  2. Step 2: Convert to fraction form
    411.92/568.43 = 246.22/x
  3. Step 3: Cross multiply
    411.92x = 568.43 × 246.22
  4. Step 4: Simplify right side
    411.92x = 139,958.24
  5. Step 5: Solve for x
    x = 139,958.24/411.92
  6. Step 6: Final answer
    x = 339.77

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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.