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Finding the Fourth Proportional to 571.45, 788.55 and 335.37

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Solution

The fourth proportional to 571.45, 788.55 and 335.37 is: 462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.45 : 788.55 = 335.37 : x
  2. Step 2: Convert to fraction form
    571.45/788.55 = 335.37/x
  3. Step 3: Cross multiply
    571.45x = 788.55 × 335.37
  4. Step 4: Simplify right side
    571.45x = 264,456.01
  5. Step 5: Solve for x
    x = 264,456.01/571.45
  6. Step 6: Final answer
    x = 462.78

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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.