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Finding the Fourth Proportional to 325.43, 446.65 and 297.62

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Solution

The fourth proportional to 325.43, 446.65 and 297.62 is: 408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.43 : 446.65 = 297.62 : x
  2. Step 2: Convert to fraction form
    325.43/446.65 = 297.62/x
  3. Step 3: Cross multiply
    325.43x = 446.65 × 297.62
  4. Step 4: Simplify right side
    325.43x = 132,930.48
  5. Step 5: Solve for x
    x = 132,930.48/325.43
  6. Step 6: Final answer
    x = 408.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.