Finding the Fourth Proportional to 181.17, 250.11 and 115.79
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Solution
The fourth proportional to 181.17, 250.11 and 115.79 is: 159.84
Step by Step Solution
- Step 1: Write the proportion equation
181.17 : 250.11 = 115.79 : x - Step 2: Convert to fraction form
181.17/250.11 = 115.79/x - Step 3: Cross multiply
181.17x = 250.11 × 115.79 - Step 4: Simplify right side
181.17x = 28,958.99 - Step 5: Solve for x
x = 28,958.99/181.17 - Step 6: Final answer
x = 159.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.