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Finding the Fourth Proportional to 366.96, 506.48 and 211.71

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Solution

The fourth proportional to 366.96, 506.48 and 211.71 is: 292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.96 : 506.48 = 211.71 : x
  2. Step 2: Convert to fraction form
    366.96/506.48 = 211.71/x
  3. Step 3: Cross multiply
    366.96x = 506.48 × 211.71
  4. Step 4: Simplify right side
    366.96x = 107,225.82
  5. Step 5: Solve for x
    x = 107,225.82/366.96
  6. Step 6: Final answer
    x = 292.20

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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.