Finding the Fourth Proportional to 181.72, 272.69 and 100.62
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Solution
The fourth proportional to 181.72, 272.69 and 100.62 is: 150.99
Step by Step Solution
- Step 1: Write the proportion equation
181.72 : 272.69 = 100.62 : x - Step 2: Convert to fraction form
181.72/272.69 = 100.62/x - Step 3: Cross multiply
181.72x = 272.69 × 100.62 - Step 4: Simplify right side
181.72x = 27,437.46 - Step 5: Solve for x
x = 27,437.46/181.72 - Step 6: Final answer
x = 150.99
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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.