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Finding the Fourth Proportional to 332.75, 459.20 and 185.40

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Solution

The fourth proportional to 332.75, 459.20 and 185.40 is: 255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.75 : 459.20 = 185.40 : x
  2. Step 2: Convert to fraction form
    332.75/459.20 = 185.40/x
  3. Step 3: Cross multiply
    332.75x = 459.20 × 185.40
  4. Step 4: Simplify right side
    332.75x = 85,136.14
  5. Step 5: Solve for x
    x = 85,136.14/332.75
  6. Step 6: Final answer
    x = 255.85

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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.