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Finding the Fourth Proportional to 516.16, 712.13 and 294.96

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Solution

The fourth proportional to 516.16, 712.13 and 294.96 is: 406.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.16 : 712.13 = 294.96 : x
  2. Step 2: Convert to fraction form
    516.16/712.13 = 294.96/x
  3. Step 3: Cross multiply
    516.16x = 712.13 × 294.96
  4. Step 4: Simplify right side
    516.16x = 210,047.38
  5. Step 5: Solve for x
    x = 210,047.38/516.16
  6. Step 6: Final answer
    x = 406.94

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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.