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Finding the Fourth Proportional to 758.11, 1,137.22 and 264.43

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Solution

The fourth proportional to 758.11, 1,137.22 and 264.43 is: 396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.11 : 1,137.22 = 264.43 : x
  2. Step 2: Convert to fraction form
    758.11/1,137.22 = 264.43/x
  3. Step 3: Cross multiply
    758.11x = 1,137.22 × 264.43
  4. Step 4: Simplify right side
    758.11x = 300,717.33
  5. Step 5: Solve for x
    x = 300,717.33/758.11
  6. Step 6: Final answer
    x = 396.67

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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.