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Finding the Fourth Proportional to 225.59, 336.42 and 200.70

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Solution

The fourth proportional to 225.59, 336.42 and 200.70 is: 299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.59 : 336.42 = 200.70 : x
  2. Step 2: Convert to fraction form
    225.59/336.42 = 200.70/x
  3. Step 3: Cross multiply
    225.59x = 336.42 × 200.70
  4. Step 4: Simplify right side
    225.59x = 67,519.18
  5. Step 5: Solve for x
    x = 67,519.18/225.59
  6. Step 6: Final answer
    x = 299.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.