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Finding the Fourth Proportional to 361.28, 498.63 and 214.00

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Solution

The fourth proportional to 361.28, 498.63 and 214.00 is: 295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.28 : 498.63 = 214.00 : x
  2. Step 2: Convert to fraction form
    361.28/498.63 = 214.00/x
  3. Step 3: Cross multiply
    361.28x = 498.63 × 214.00
  4. Step 4: Simplify right side
    361.28x = 106,706.38
  5. Step 5: Solve for x
    x = 106,706.38/361.28
  6. Step 6: Final answer
    x = 295.35

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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.