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Finding the Fourth Proportional to 332.78, 459.25 and 185.43

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Solution

The fourth proportional to 332.78, 459.25 and 185.43 is: 255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.78 : 459.25 = 185.43 : x
  2. Step 2: Convert to fraction form
    332.78/459.25 = 185.43/x
  3. Step 3: Cross multiply
    332.78x = 459.25 × 185.43
  4. Step 4: Simplify right side
    332.78x = 85,156.54
  5. Step 5: Solve for x
    x = 85,156.54/332.78
  6. Step 6: Final answer
    x = 255.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.