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Finding the Fourth Proportional to 253.98, 351.81 and 233.46

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Solution

The fourth proportional to 253.98, 351.81 and 233.46 is: 323.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.98 : 351.81 = 233.46 : x
  2. Step 2: Convert to fraction form
    253.98/351.81 = 233.46/x
  3. Step 3: Cross multiply
    253.98x = 351.81 × 233.46
  4. Step 4: Simplify right side
    253.98x = 82,133.56
  5. Step 5: Solve for x
    x = 82,133.56/253.98
  6. Step 6: Final answer
    x = 323.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.