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Finding the Fourth Proportional to 361.88, 499.38 and 214.51

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Solution

The fourth proportional to 361.88, 499.38 and 214.51 is: 296.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.88 : 499.38 = 214.51 : x
  2. Step 2: Convert to fraction form
    361.88/499.38 = 214.51/x
  3. Step 3: Cross multiply
    361.88x = 499.38 × 214.51
  4. Step 4: Simplify right side
    361.88x = 107,122.00
  5. Step 5: Solve for x
    x = 107,122.00/361.88
  6. Step 6: Final answer
    x = 296.02

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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.