Finding the Fourth Proportional to 202.11, 303.21 and 199.68
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Solution
The fourth proportional to 202.11, 303.21 and 199.68 is: 299.56
Step by Step Solution
- Step 1: Write the proportion equation
202.11 : 303.21 = 199.68 : x - Step 2: Convert to fraction form
202.11/303.21 = 199.68/x - Step 3: Cross multiply
202.11x = 303.21 × 199.68 - Step 4: Simplify right side
202.11x = 60,544.97 - Step 5: Solve for x
x = 60,544.97/202.11 - Step 6: Final answer
x = 299.56
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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.