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Finding the Fourth Proportional to 358.67, 535.14 and 324.18

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Solution

The fourth proportional to 358.67, 535.14 and 324.18 is: 483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.67 : 535.14 = 324.18 : x
  2. Step 2: Convert to fraction form
    358.67/535.14 = 324.18/x
  3. Step 3: Cross multiply
    358.67x = 535.14 × 324.18
  4. Step 4: Simplify right side
    358.67x = 173,481.69
  5. Step 5: Solve for x
    x = 173,481.69/358.67
  6. Step 6: Final answer
    x = 483.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.