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Finding the Fourth Proportional to 358.62, 537.45 and 163.64

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Solution

The fourth proportional to 358.62, 537.45 and 163.64 is: 245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.62 : 537.45 = 163.64 : x
  2. Step 2: Convert to fraction form
    358.62/537.45 = 163.64/x
  3. Step 3: Cross multiply
    358.62x = 537.45 × 163.64
  4. Step 4: Simplify right side
    358.62x = 87,948.32
  5. Step 5: Solve for x
    x = 87,948.32/358.62
  6. Step 6: Final answer
    x = 245.24

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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.