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Finding the Fourth Proportional to 382.32, 574.44 and 336.24

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Solution

The fourth proportional to 382.32, 574.44 and 336.24 is: 505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.32 : 574.44 = 336.24 : x
  2. Step 2: Convert to fraction form
    382.32/574.44 = 336.24/x
  3. Step 3: Cross multiply
    382.32x = 574.44 × 336.24
  4. Step 4: Simplify right side
    382.32x = 193,149.71
  5. Step 5: Solve for x
    x = 193,149.71/382.32
  6. Step 6: Final answer
    x = 505.20

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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.