Finding the Fourth Proportional to 182.61, 252.08 and 117.20
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Solution
The fourth proportional to 182.61, 252.08 and 117.20 is: 161.79
Step by Step Solution
- Step 1: Write the proportion equation
182.61 : 252.08 = 117.20 : x - Step 2: Convert to fraction form
182.61/252.08 = 117.20/x - Step 3: Cross multiply
182.61x = 252.08 × 117.20 - Step 4: Simplify right side
182.61x = 29,544.26 - Step 5: Solve for x
x = 29,544.26/182.61 - Step 6: Final answer
x = 161.79
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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.