Finding the Fourth Proportional to 201.99, 303.09 and 140.99
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Solution
The fourth proportional to 201.99, 303.09 and 140.99 is: 211.56
Step by Step Solution
- Step 1: Write the proportion equation
201.99 : 303.09 = 140.99 : x - Step 2: Convert to fraction form
201.99/303.09 = 140.99/x - Step 3: Cross multiply
201.99x = 303.09 × 140.99 - Step 4: Simplify right side
201.99x = 42,733.11 - Step 5: Solve for x
x = 42,733.11/201.99 - Step 6: Final answer
x = 211.56
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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.