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Finding the Fourth Proportional to 516.34, 712.53 and 369.22

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Solution

The fourth proportional to 516.34, 712.53 and 369.22 is: 509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.34 : 712.53 = 369.22 : x
  2. Step 2: Convert to fraction form
    516.34/712.53 = 369.22/x
  3. Step 3: Cross multiply
    516.34x = 712.53 × 369.22
  4. Step 4: Simplify right side
    516.34x = 263,078.55
  5. Step 5: Solve for x
    x = 263,078.55/516.34
  6. Step 6: Final answer
    x = 509.51

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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.