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Finding the Fourth Proportional to 381.26, 570.60 and 244.40

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Solution

The fourth proportional to 381.26, 570.60 and 244.40 is: 365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.26 : 570.60 = 244.40 : x
  2. Step 2: Convert to fraction form
    381.26/570.60 = 244.40/x
  3. Step 3: Cross multiply
    381.26x = 570.60 × 244.40
  4. Step 4: Simplify right side
    381.26x = 139,454.64
  5. Step 5: Solve for x
    x = 139,454.64/381.26
  6. Step 6: Final answer
    x = 365.77

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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.