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Finding the Fourth Proportional to 571.66, 789.29 and 350.68

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Solution

The fourth proportional to 571.66, 789.29 and 350.68 is: 484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.66 : 789.29 = 350.68 : x
  2. Step 2: Convert to fraction form
    571.66/789.29 = 350.68/x
  3. Step 3: Cross multiply
    571.66x = 789.29 × 350.68
  4. Step 4: Simplify right side
    571.66x = 276,789.26
  5. Step 5: Solve for x
    x = 276,789.26/571.66
  6. Step 6: Final answer
    x = 484.19

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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.