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Finding the Fourth Proportional to 214.18, 296.83 and 211.55

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Solution

The fourth proportional to 214.18, 296.83 and 211.55 is: 293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.18 : 296.83 = 211.55 : x
  2. Step 2: Convert to fraction form
    214.18/296.83 = 211.55/x
  3. Step 3: Cross multiply
    214.18x = 296.83 × 211.55
  4. Step 4: Simplify right side
    214.18x = 62,793.17
  5. Step 5: Solve for x
    x = 62,793.17/214.18
  6. Step 6: Final answer
    x = 293.18

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.