Finding the Fourth Proportional to 181.99, 272.68 and 121.14
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Solution
The fourth proportional to 181.99, 272.68 and 121.14 is: 181.51
Step by Step Solution
- Step 1: Write the proportion equation
181.99 : 272.68 = 121.14 : x - Step 2: Convert to fraction form
181.99/272.68 = 121.14/x - Step 3: Cross multiply
181.99x = 272.68 × 121.14 - Step 4: Simplify right side
181.99x = 33,032.15 - Step 5: Solve for x
x = 33,032.15/181.99 - Step 6: Final answer
x = 181.51
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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.