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Finding the Fourth Proportional to 645.14, 967.41 and 234.09

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Solution

The fourth proportional to 645.14, 967.41 and 234.09 is: 351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    645.14 : 967.41 = 234.09 : x
  2. Step 2: Convert to fraction form
    645.14/967.41 = 234.09/x
  3. Step 3: Cross multiply
    645.14x = 967.41 × 234.09
  4. Step 4: Simplify right side
    645.14x = 226,461.01
  5. Step 5: Solve for x
    x = 226,461.01/645.14
  6. Step 6: Final answer
    x = 351.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.