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Finding the Fourth Proportional to 251.19, 374.67 and 230.22

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Solution

The fourth proportional to 251.19, 374.67 and 230.22 is: 343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.19 : 374.67 = 230.22 : x
  2. Step 2: Convert to fraction form
    251.19/374.67 = 230.22/x
  3. Step 3: Cross multiply
    251.19x = 374.67 × 230.22
  4. Step 4: Simplify right side
    251.19x = 86,256.53
  5. Step 5: Solve for x
    x = 86,256.53/251.19
  6. Step 6: Final answer
    x = 343.39

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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.