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Finding the Fourth Proportional to 333.20, 459.78 and 185.83

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Solution

The fourth proportional to 333.20, 459.78 and 185.83 is: 256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.20 : 459.78 = 185.83 : x
  2. Step 2: Convert to fraction form
    333.20/459.78 = 185.83/x
  3. Step 3: Cross multiply
    333.20x = 459.78 × 185.83
  4. Step 4: Simplify right side
    333.20x = 85,440.92
  5. Step 5: Solve for x
    x = 85,440.92/333.20
  6. Step 6: Final answer
    x = 256.43

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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.