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Finding the Fourth Proportional to 336.06, 503.90 and 199.20

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Solution

The fourth proportional to 336.06, 503.90 and 199.20 is: 298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.06 : 503.90 = 199.20 : x
  2. Step 2: Convert to fraction form
    336.06/503.90 = 199.20/x
  3. Step 3: Cross multiply
    336.06x = 503.90 × 199.20
  4. Step 4: Simplify right side
    336.06x = 100,375.69
  5. Step 5: Solve for x
    x = 100,375.69/336.06
  6. Step 6: Final answer
    x = 298.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.