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Finding the Fourth Proportional to 380.61, 525.24 and 223.33

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Solution

The fourth proportional to 380.61, 525.24 and 223.33 is: 308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.61 : 525.24 = 223.33 : x
  2. Step 2: Convert to fraction form
    380.61/525.24 = 223.33/x
  3. Step 3: Cross multiply
    380.61x = 525.24 × 223.33
  4. Step 4: Simplify right side
    380.61x = 117,301.85
  5. Step 5: Solve for x
    x = 117,301.85/380.61
  6. Step 6: Final answer
    x = 308.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.