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Finding the Fourth Proportional to 955.75, 1,433.59 and 262.41

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Solution

The fourth proportional to 955.75, 1,433.59 and 262.41 is: 393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.75 : 1,433.59 = 262.41 : x
  2. Step 2: Convert to fraction form
    955.75/1,433.59 = 262.41/x
  3. Step 3: Cross multiply
    955.75x = 1,433.59 × 262.41
  4. Step 4: Simplify right side
    955.75x = 376,194.05
  5. Step 5: Solve for x
    x = 376,194.05/955.75
  6. Step 6: Final answer
    x = 393.61

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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.