Finding the Fourth Proportional to 201.96, 302.99 and 71.97
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Solution
The fourth proportional to 201.96, 302.99 and 71.97 is: 107.97
Step by Step Solution
- Step 1: Write the proportion equation
201.96 : 302.99 = 71.97 : x - Step 2: Convert to fraction form
201.96/302.99 = 71.97/x - Step 3: Cross multiply
201.96x = 302.99 × 71.97 - Step 4: Simplify right side
201.96x = 21,806.19 - Step 5: Solve for x
x = 21,806.19/201.96 - Step 6: Final answer
x = 107.97
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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.