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Finding the Fourth Proportional to 571.51, 852.51 and 516.79

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Solution

The fourth proportional to 571.51, 852.51 and 516.79 is: 770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.51 : 852.51 = 516.79 : x
  2. Step 2: Convert to fraction form
    571.51/852.51 = 516.79/x
  3. Step 3: Cross multiply
    571.51x = 852.51 × 516.79
  4. Step 4: Simplify right side
    571.51x = 440,568.64
  5. Step 5: Solve for x
    x = 440,568.64/571.51
  6. Step 6: Final answer
    x = 770.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.