Finding the Fourth Proportional to 181.14, 271.58 and 161.70
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Solution
The fourth proportional to 181.14, 271.58 and 161.70 is: 242.43
Step by Step Solution
- Step 1: Write the proportion equation
181.14 : 271.58 = 161.70 : x - Step 2: Convert to fraction form
181.14/271.58 = 161.70/x - Step 3: Cross multiply
181.14x = 271.58 × 161.70 - Step 4: Simplify right side
181.14x = 43,913.68 - Step 5: Solve for x
x = 43,913.68/181.14 - Step 6: Final answer
x = 242.43
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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.