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Finding the Fourth Proportional to 605.81, 836.03 and 343.85

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Solution

The fourth proportional to 605.81, 836.03 and 343.85 is: 474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.81 : 836.03 = 343.85 : x
  2. Step 2: Convert to fraction form
    605.81/836.03 = 343.85/x
  3. Step 3: Cross multiply
    605.81x = 836.03 × 343.85
  4. Step 4: Simplify right side
    605.81x = 287,465.59
  5. Step 5: Solve for x
    x = 287,465.59/605.81
  6. Step 6: Final answer
    x = 474.51

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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.