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Finding the Fourth Proportional to 380.73, 525.41 and 206.07

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Solution

The fourth proportional to 380.73, 525.41 and 206.07 is: 284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.73 : 525.41 = 206.07 : x
  2. Step 2: Convert to fraction form
    380.73/525.41 = 206.07/x
  3. Step 3: Cross multiply
    380.73x = 525.41 × 206.07
  4. Step 4: Simplify right side
    380.73x = 108,273.44
  5. Step 5: Solve for x
    x = 108,273.44/380.73
  6. Step 6: Final answer
    x = 284.38

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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.