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Finding the Fourth Proportional to 333.64, 499.38 and 251.92

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Solution

The fourth proportional to 333.64, 499.38 and 251.92 is: 377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.64 : 499.38 = 251.92 : x
  2. Step 2: Convert to fraction form
    333.64/499.38 = 251.92/x
  3. Step 3: Cross multiply
    333.64x = 499.38 × 251.92
  4. Step 4: Simplify right side
    333.64x = 125,803.81
  5. Step 5: Solve for x
    x = 125,803.81/333.64
  6. Step 6: Final answer
    x = 377.06

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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.