Finding the Fourth Proportional to 181.81, 272.67 and 82.99
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Solution
The fourth proportional to 181.81, 272.67 and 82.99 is: 124.46
Step by Step Solution
- Step 1: Write the proportion equation
181.81 : 272.67 = 82.99 : x - Step 2: Convert to fraction form
181.81/272.67 = 82.99/x - Step 3: Cross multiply
181.81x = 272.67 × 82.99 - Step 4: Simplify right side
181.81x = 22,628.88 - Step 5: Solve for x
x = 22,628.88/181.81 - Step 6: Final answer
x = 124.46
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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.