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Finding the Fourth Proportional to 263.94, 395.07 and 190.53

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Solution

The fourth proportional to 263.94, 395.07 and 190.53 is: 285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.94 : 395.07 = 190.53 : x
  2. Step 2: Convert to fraction form
    263.94/395.07 = 190.53/x
  3. Step 3: Cross multiply
    263.94x = 395.07 × 190.53
  4. Step 4: Simplify right side
    263.94x = 75,272.69
  5. Step 5: Solve for x
    x = 75,272.69/263.94
  6. Step 6: Final answer
    x = 285.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.