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Finding the Fourth Proportional to 571.71, 789.33 and 375.54

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Solution

The fourth proportional to 571.71, 789.33 and 375.54 is: 518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.71 : 789.33 = 375.54 : x
  2. Step 2: Convert to fraction form
    571.71/789.33 = 375.54/x
  3. Step 3: Cross multiply
    571.71x = 789.33 × 375.54
  4. Step 4: Simplify right side
    571.71x = 296,424.99
  5. Step 5: Solve for x
    x = 296,424.99/571.71
  6. Step 6: Final answer
    x = 518.49

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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.