Finding the Fourth Proportional to 201.05, 300.99 and 180.21
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Solution
The fourth proportional to 201.05, 300.99 and 180.21 is: 269.79
Step by Step Solution
- Step 1: Write the proportion equation
201.05 : 300.99 = 180.21 : x - Step 2: Convert to fraction form
201.05/300.99 = 180.21/x - Step 3: Cross multiply
201.05x = 300.99 × 180.21 - Step 4: Simplify right side
201.05x = 54,241.41 - Step 5: Solve for x
x = 54,241.41/201.05 - Step 6: Final answer
x = 269.79
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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.