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Finding the Fourth Proportional to 382.07, 573.22 and 125.75

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Solution

The fourth proportional to 382.07, 573.22 and 125.75 is: 188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.07 : 573.22 = 125.75 : x
  2. Step 2: Convert to fraction form
    382.07/573.22 = 125.75/x
  3. Step 3: Cross multiply
    382.07x = 573.22 × 125.75
  4. Step 4: Simplify right side
    382.07x = 72,082.42
  5. Step 5: Solve for x
    x = 72,082.42/382.07
  6. Step 6: Final answer
    x = 188.66

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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.