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Finding the Fourth Proportional to 366.89, 548.95 and 212.89

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Solution

The fourth proportional to 366.89, 548.95 and 212.89 is: 318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.89 : 548.95 = 212.89 : x
  2. Step 2: Convert to fraction form
    366.89/548.95 = 212.89/x
  3. Step 3: Cross multiply
    366.89x = 548.95 × 212.89
  4. Step 4: Simplify right side
    366.89x = 116,865.97
  5. Step 5: Solve for x
    x = 116,865.97/366.89
  6. Step 6: Final answer
    x = 318.53

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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.