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Finding the Fourth Proportional to 250.05, 374.47 and 214

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Solution

The fourth proportional to 250.05, 374.47 and 214 is: 320.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.05 : 374.47 = 214 : x
  2. Step 2: Convert to fraction form
    250.05/374.47 = 214/x
  3. Step 3: Cross multiply
    250.05x = 374.47 × 214
  4. Step 4: Simplify right side
    250.05x = 80,136.58
  5. Step 5: Solve for x
    x = 80,136.58/250.05
  6. Step 6: Final answer
    x = 320.48

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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.