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Finding the Fourth Proportional to 516.26, 712.30 and 341.57

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Solution

The fourth proportional to 516.26, 712.30 and 341.57 is: 471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.26 : 712.30 = 341.57 : x
  2. Step 2: Convert to fraction form
    516.26/712.30 = 341.57/x
  3. Step 3: Cross multiply
    516.26x = 712.30 × 341.57
  4. Step 4: Simplify right side
    516.26x = 243,300.31
  5. Step 5: Solve for x
    x = 243,300.31/516.26
  6. Step 6: Final answer
    x = 471.27

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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.