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Finding the Fourth Proportional to 251.66, 375.53 and 225.80

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Solution

The fourth proportional to 251.66, 375.53 and 225.80 is: 336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.66 : 375.53 = 225.80 : x
  2. Step 2: Convert to fraction form
    251.66/375.53 = 225.80/x
  3. Step 3: Cross multiply
    251.66x = 375.53 × 225.80
  4. Step 4: Simplify right side
    251.66x = 84,794.72
  5. Step 5: Solve for x
    x = 84,794.72/251.66
  6. Step 6: Final answer
    x = 336.95

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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.