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Finding the Fourth Proportional to 516.97, 713.40 and 284.11

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Solution

The fourth proportional to 516.97, 713.40 and 284.11 is: 392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.97 : 713.40 = 284.11 : x
  2. Step 2: Convert to fraction form
    516.97/713.40 = 284.11/x
  3. Step 3: Cross multiply
    516.97x = 713.40 × 284.11
  4. Step 4: Simplify right side
    516.97x = 202,684.07
  5. Step 5: Solve for x
    x = 202,684.07/516.97
  6. Step 6: Final answer
    x = 392.06

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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.