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Finding the Fourth Proportional to 336.17, 503.62 and 198.81

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Solution

The fourth proportional to 336.17, 503.62 and 198.81 is: 297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.17 : 503.62 = 198.81 : x
  2. Step 2: Convert to fraction form
    336.17/503.62 = 198.81/x
  3. Step 3: Cross multiply
    336.17x = 503.62 × 198.81
  4. Step 4: Simplify right side
    336.17x = 100,124.69
  5. Step 5: Solve for x
    x = 100,124.69/336.17
  6. Step 6: Final answer
    x = 297.84

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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.