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Finding the Fourth Proportional to 606.15, 836.55 and 344.21

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Solution

The fourth proportional to 606.15, 836.55 and 344.21 is: 475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.15 : 836.55 = 344.21 : x
  2. Step 2: Convert to fraction form
    606.15/836.55 = 344.21/x
  3. Step 3: Cross multiply
    606.15x = 836.55 × 344.21
  4. Step 4: Simplify right side
    606.15x = 287,948.88
  5. Step 5: Solve for x
    x = 287,948.88/606.15
  6. Step 6: Final answer
    x = 475.05

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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.