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Finding the Fourth Proportional to 297.73, 411.36 and 214.67

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Solution

The fourth proportional to 297.73, 411.36 and 214.67 is: 296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.73 : 411.36 = 214.67 : x
  2. Step 2: Convert to fraction form
    297.73/411.36 = 214.67/x
  3. Step 3: Cross multiply
    297.73x = 411.36 × 214.67
  4. Step 4: Simplify right side
    297.73x = 88,306.65
  5. Step 5: Solve for x
    x = 88,306.65/297.73
  6. Step 6: Final answer
    x = 296.60

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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.