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Finding the Fourth Proportional to 361.56, 500.88 and 353.04

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Solution

The fourth proportional to 361.56, 500.88 and 353.04 is: 489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.56 : 500.88 = 353.04 : x
  2. Step 2: Convert to fraction form
    361.56/500.88 = 353.04/x
  3. Step 3: Cross multiply
    361.56x = 500.88 × 353.04
  4. Step 4: Simplify right side
    361.56x = 176,830.68
  5. Step 5: Solve for x
    x = 176,830.68/361.56
  6. Step 6: Final answer
    x = 489.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.