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Finding the Fourth Proportional to 251.88, 375.96 and 217.03

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Solution

The fourth proportional to 251.88, 375.96 and 217.03 is: 323.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.88 : 375.96 = 217.03 : x
  2. Step 2: Convert to fraction form
    251.88/375.96 = 217.03/x
  3. Step 3: Cross multiply
    251.88x = 375.96 × 217.03
  4. Step 4: Simplify right side
    251.88x = 81,592.85
  5. Step 5: Solve for x
    x = 81,592.85/251.88
  6. Step 6: Final answer
    x = 323.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.