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Finding the Fourth Proportional to 251.19, 344.75 and 230.34

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Solution

The fourth proportional to 251.19, 344.75 and 230.34 is: 316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.19 : 344.75 = 230.34 : x
  2. Step 2: Convert to fraction form
    251.19/344.75 = 230.34/x
  3. Step 3: Cross multiply
    251.19x = 344.75 × 230.34
  4. Step 4: Simplify right side
    251.19x = 79,408.56
  5. Step 5: Solve for x
    x = 79,408.56/251.19
  6. Step 6: Final answer
    x = 316.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.