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Finding the Fourth Proportional to 383.02, 574.26 and 254.50

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Solution

The fourth proportional to 383.02, 574.26 and 254.50 is: 381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.02 : 574.26 = 254.50 : x
  2. Step 2: Convert to fraction form
    383.02/574.26 = 254.50/x
  3. Step 3: Cross multiply
    383.02x = 574.26 × 254.50
  4. Step 4: Simplify right side
    383.02x = 146,149.17
  5. Step 5: Solve for x
    x = 146,149.17/383.02
  6. Step 6: Final answer
    x = 381.57

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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.