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Finding the Fourth Proportional to 606.11, 836.40 and 340.56

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Solution

The fourth proportional to 606.11, 836.40 and 340.56 is: 469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.11 : 836.40 = 340.56 : x
  2. Step 2: Convert to fraction form
    606.11/836.40 = 340.56/x
  3. Step 3: Cross multiply
    606.11x = 836.40 × 340.56
  4. Step 4: Simplify right side
    606.11x = 284,844.38
  5. Step 5: Solve for x
    x = 284,844.38/606.11
  6. Step 6: Final answer
    x = 469.95

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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.