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Finding the Fourth Proportional to 379.82, 524.07 and 214.04

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Solution

The fourth proportional to 379.82, 524.07 and 214.04 is: 295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.82 : 524.07 = 214.04 : x
  2. Step 2: Convert to fraction form
    379.82/524.07 = 214.04/x
  3. Step 3: Cross multiply
    379.82x = 524.07 × 214.04
  4. Step 4: Simplify right side
    379.82x = 112,171.94
  5. Step 5: Solve for x
    x = 112,171.94/379.82
  6. Step 6: Final answer
    x = 295.33

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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.