Finding the Fourth Proportional to 201.87, 302.97 and 80.22
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Solution
The fourth proportional to 201.87, 302.97 and 80.22 is: 120.39
Step by Step Solution
- Step 1: Write the proportion equation
201.87 : 302.97 = 80.22 : x - Step 2: Convert to fraction form
201.87/302.97 = 80.22/x - Step 3: Cross multiply
201.87x = 302.97 × 80.22 - Step 4: Simplify right side
201.87x = 24,303.13 - Step 5: Solve for x
x = 24,303.13/201.87 - Step 6: Final answer
x = 120.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.