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Finding the Fourth Proportional to 376.07, 516.21 and 333.69

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Solution

The fourth proportional to 376.07, 516.21 and 333.69 is: 458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.07 : 516.21 = 333.69 : x
  2. Step 2: Convert to fraction form
    376.07/516.21 = 333.69/x
  3. Step 3: Cross multiply
    376.07x = 516.21 × 333.69
  4. Step 4: Simplify right side
    376.07x = 172,254.80
  5. Step 5: Solve for x
    x = 172,254.80/376.07
  6. Step 6: Final answer
    x = 458.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.