Finding the Fourth Proportional to 181.63, 272.26 and 112.99
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Solution
The fourth proportional to 181.63, 272.26 and 112.99 is: 169.37
Step by Step Solution
- Step 1: Write the proportion equation
181.63 : 272.26 = 112.99 : x - Step 2: Convert to fraction form
181.63/272.26 = 112.99/x - Step 3: Cross multiply
181.63x = 272.26 × 112.99 - Step 4: Simplify right side
181.63x = 30,762.66 - Step 5: Solve for x
x = 30,762.66/181.63 - Step 6: Final answer
x = 169.37
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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.