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Finding the Fourth Proportional to 358.39, 537.59 and 197.09

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Solution

The fourth proportional to 358.39, 537.59 and 197.09 is: 295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.39 : 537.59 = 197.09 : x
  2. Step 2: Convert to fraction form
    358.39/537.59 = 197.09/x
  3. Step 3: Cross multiply
    358.39x = 537.59 × 197.09
  4. Step 4: Simplify right side
    358.39x = 105,953.97
  5. Step 5: Solve for x
    x = 105,953.97/358.39
  6. Step 6: Final answer
    x = 295.64

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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.