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Finding the Fourth Proportional to 361.02, 497.78 and 236.63

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Solution

The fourth proportional to 361.02, 497.78 and 236.63 is: 326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.02 : 497.78 = 236.63 : x
  2. Step 2: Convert to fraction form
    361.02/497.78 = 236.63/x
  3. Step 3: Cross multiply
    361.02x = 497.78 × 236.63
  4. Step 4: Simplify right side
    361.02x = 117,789.68
  5. Step 5: Solve for x
    x = 117,789.68/361.02
  6. Step 6: Final answer
    x = 326.27

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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.