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Finding the Fourth Proportional to 380.02, 524.39 and 232.69

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Solution

The fourth proportional to 380.02, 524.39 and 232.69 is: 321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.02 : 524.39 = 232.69 : x
  2. Step 2: Convert to fraction form
    380.02/524.39 = 232.69/x
  3. Step 3: Cross multiply
    380.02x = 524.39 × 232.69
  4. Step 4: Simplify right side
    380.02x = 122,020.31
  5. Step 5: Solve for x
    x = 122,020.31/380.02
  6. Step 6: Final answer
    x = 321.09

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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.