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Finding the Fourth Proportional to 256.24, 386.25 and 241.38

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Solution

The fourth proportional to 256.24, 386.25 and 241.38 is: 363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.24 : 386.25 = 241.38 : x
  2. Step 2: Convert to fraction form
    256.24/386.25 = 241.38/x
  3. Step 3: Cross multiply
    256.24x = 386.25 × 241.38
  4. Step 4: Simplify right side
    256.24x = 93,233.03
  5. Step 5: Solve for x
    x = 93,233.03/256.24
  6. Step 6: Final answer
    x = 363.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.