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Finding the Fourth Proportional to 383.84, 574.92 and 371.60

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Solution

The fourth proportional to 383.84, 574.92 and 371.60 is: 556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.84 : 574.92 = 371.60 : x
  2. Step 2: Convert to fraction form
    383.84/574.92 = 371.60/x
  3. Step 3: Cross multiply
    383.84x = 574.92 × 371.60
  4. Step 4: Simplify right side
    383.84x = 213,640.27
  5. Step 5: Solve for x
    x = 213,640.27/383.84
  6. Step 6: Final answer
    x = 556.59

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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.