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Finding the Fourth Proportional to 605.94, 836.11 and 340.38

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Solution

The fourth proportional to 605.94, 836.11 and 340.38 is: 469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.94 : 836.11 = 340.38 : x
  2. Step 2: Convert to fraction form
    605.94/836.11 = 340.38/x
  3. Step 3: Cross multiply
    605.94x = 836.11 × 340.38
  4. Step 4: Simplify right side
    605.94x = 284,595.12
  5. Step 5: Solve for x
    x = 284,595.12/605.94
  6. Step 6: Final answer
    x = 469.68

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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.