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Finding the Fourth Proportional to 606.20, 836.50 and 344.12

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Solution

The fourth proportional to 606.20, 836.50 and 344.12 is: 474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.20 : 836.50 = 344.12 : x
  2. Step 2: Convert to fraction form
    606.20/836.50 = 344.12/x
  3. Step 3: Cross multiply
    606.20x = 836.50 × 344.12
  4. Step 4: Simplify right side
    606.20x = 287,856.38
  5. Step 5: Solve for x
    x = 287,856.38/606.20
  6. Step 6: Final answer
    x = 474.85

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Double scale
Find fourth proportional to 607.20, 837.88 and 345.12
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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.