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Finding the Fourth Proportional to 515.80, 773.66 and 241.82

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Solution

The fourth proportional to 515.80, 773.66 and 241.82 is: 362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.80 : 773.66 = 241.82 : x
  2. Step 2: Convert to fraction form
    515.80/773.66 = 241.82/x
  3. Step 3: Cross multiply
    515.80x = 773.66 × 241.82
  4. Step 4: Simplify right side
    515.80x = 187,086.46
  5. Step 5: Solve for x
    x = 187,086.46/515.80
  6. Step 6: Final answer
    x = 362.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.