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Finding the Fourth Proportional to 437.45, 655.77 and 163.33

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Solution

The fourth proportional to 437.45, 655.77 and 163.33 is: 244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.45 : 655.77 = 163.33 : x
  2. Step 2: Convert to fraction form
    437.45/655.77 = 163.33/x
  3. Step 3: Cross multiply
    437.45x = 655.77 × 163.33
  4. Step 4: Simplify right side
    437.45x = 107,109.12
  5. Step 5: Solve for x
    x = 107,109.12/437.45
  6. Step 6: Final answer
    x = 244.85

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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.