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Finding the Fourth Proportional to 516.11, 712.03 and 294.94

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Solution

The fourth proportional to 516.11, 712.03 and 294.94 is: 406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.11 : 712.03 = 294.94 : x
  2. Step 2: Convert to fraction form
    516.11/712.03 = 294.94/x
  3. Step 3: Cross multiply
    516.11x = 712.03 × 294.94
  4. Step 4: Simplify right side
    516.11x = 210,006.42
  5. Step 5: Solve for x
    x = 210,006.42/516.11
  6. Step 6: Final answer
    x = 406.90

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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.