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Finding the Fourth Proportional to 361.53, 539.28 and 353.34

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Solution

The fourth proportional to 361.53, 539.28 and 353.34 is: 527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.53 : 539.28 = 353.34 : x
  2. Step 2: Convert to fraction form
    361.53/539.28 = 353.34/x
  3. Step 3: Cross multiply
    361.53x = 539.28 × 353.34
  4. Step 4: Simplify right side
    361.53x = 190,549.20
  5. Step 5: Solve for x
    x = 190,549.20/361.53
  6. Step 6: Final answer
    x = 527.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.