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Finding the Fourth Proportional to 358.78, 537.93 and 153.29

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Solution

The fourth proportional to 358.78, 537.93 and 153.29 is: 229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.78 : 537.93 = 153.29 : x
  2. Step 2: Convert to fraction form
    358.78/537.93 = 153.29/x
  3. Step 3: Cross multiply
    358.78x = 537.93 × 153.29
  4. Step 4: Simplify right side
    358.78x = 82,456.60
  5. Step 5: Solve for x
    x = 82,456.60/358.78
  6. Step 6: Final answer
    x = 229.83

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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.