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Finding the Fourth Proportional to 591.60, 816.42 and 329.62

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Solution

The fourth proportional to 591.60, 816.42 and 329.62 is: 454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.60 : 816.42 = 329.62 : x
  2. Step 2: Convert to fraction form
    591.60/816.42 = 329.62/x
  3. Step 3: Cross multiply
    591.60x = 816.42 × 329.62
  4. Step 4: Simplify right side
    591.60x = 269,108.36
  5. Step 5: Solve for x
    x = 269,108.36/591.60
  6. Step 6: Final answer
    x = 454.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.