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Finding the Fourth Proportional to 380.03, 524.44 and 214.28

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Solution

The fourth proportional to 380.03, 524.44 and 214.28 is: 295.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.03 : 524.44 = 214.28 : x
  2. Step 2: Convert to fraction form
    380.03/524.44 = 214.28/x
  3. Step 3: Cross multiply
    380.03x = 524.44 × 214.28
  4. Step 4: Simplify right side
    380.03x = 112,377.00
  5. Step 5: Solve for x
    x = 112,377.00/380.03
  6. Step 6: Final answer
    x = 295.71

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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.