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Finding the Fourth Proportional to 361.45, 498.69 and 214.08

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Solution

The fourth proportional to 361.45, 498.69 and 214.08 is: 295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.45 : 498.69 = 214.08 : x
  2. Step 2: Convert to fraction form
    361.45/498.69 = 214.08/x
  3. Step 3: Cross multiply
    361.45x = 498.69 × 214.08
  4. Step 4: Simplify right side
    361.45x = 106,759.56
  5. Step 5: Solve for x
    x = 106,759.56/361.45
  6. Step 6: Final answer
    x = 295.36

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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.