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Finding the Fourth Proportional to 591.24, 886.86 and 331.20

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Solution

The fourth proportional to 591.24, 886.86 and 331.20 is: 496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.24 : 886.86 = 331.20 : x
  2. Step 2: Convert to fraction form
    591.24/886.86 = 331.20/x
  3. Step 3: Cross multiply
    591.24x = 886.86 × 331.20
  4. Step 4: Simplify right side
    591.24x = 293,728.03
  5. Step 5: Solve for x
    x = 293,728.03/591.24
  6. Step 6: Final answer
    x = 496.80

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Similar ratio
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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.