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Finding the Fourth Proportional to 437.29, 656.04 and 163.38

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Solution

The fourth proportional to 437.29, 656.04 and 163.38 is: 245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.29 : 656.04 = 163.38 : x
  2. Step 2: Convert to fraction form
    437.29/656.04 = 163.38/x
  3. Step 3: Cross multiply
    437.29x = 656.04 × 163.38
  4. Step 4: Simplify right side
    437.29x = 107,185.96
  5. Step 5: Solve for x
    x = 107,185.96/437.29
  6. Step 6: Final answer
    x = 245.11

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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.