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Finding the Fourth Proportional to 361.55, 539.36 and 351.63

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Solution

The fourth proportional to 361.55, 539.36 and 351.63 is: 524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.55 : 539.36 = 351.63 : x
  2. Step 2: Convert to fraction form
    361.55/539.36 = 351.63/x
  3. Step 3: Cross multiply
    361.55x = 539.36 × 351.63
  4. Step 4: Simplify right side
    361.55x = 189,653.40
  5. Step 5: Solve for x
    x = 189,653.40/361.55
  6. Step 6: Final answer
    x = 524.56

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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.