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Finding the Fourth Proportional to 378.75, 566.73 and 224.13

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Solution

The fourth proportional to 378.75, 566.73 and 224.13 is: 335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.75 : 566.73 = 224.13 : x
  2. Step 2: Convert to fraction form
    378.75/566.73 = 224.13/x
  3. Step 3: Cross multiply
    378.75x = 566.73 × 224.13
  4. Step 4: Simplify right side
    378.75x = 127,021.19
  5. Step 5: Solve for x
    x = 127,021.19/378.75
  6. Step 6: Final answer
    x = 335.37

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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.