Finding the Fourth Proportional to 201.62, 302.18 and 114.99
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Solution
The fourth proportional to 201.62, 302.18 and 114.99 is: 172.34
Step by Step Solution
- Step 1: Write the proportion equation
201.62 : 302.18 = 114.99 : x - Step 2: Convert to fraction form
201.62/302.18 = 114.99/x - Step 3: Cross multiply
201.62x = 302.18 × 114.99 - Step 4: Simplify right side
201.62x = 34,747.10 - Step 5: Solve for x
x = 34,747.10/201.62 - Step 6: Final answer
x = 172.34
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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.