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Finding the Fourth Proportional to 263.80, 361.88 and 252.60

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Solution

The fourth proportional to 263.80, 361.88 and 252.60 is: 346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.80 : 361.88 = 252.60 : x
  2. Step 2: Convert to fraction form
    263.80/361.88 = 252.60/x
  3. Step 3: Cross multiply
    263.80x = 361.88 × 252.60
  4. Step 4: Simplify right side
    263.80x = 91,410.89
  5. Step 5: Solve for x
    x = 91,410.89/263.80
  6. Step 6: Final answer
    x = 346.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.