Finding the Fourth Proportional to 170.26, 234.75 and 117.70
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Solution
The fourth proportional to 170.26, 234.75 and 117.70 is: 162.28
Step by Step Solution
- Step 1: Write the proportion equation
170.26 : 234.75 = 117.70 : x - Step 2: Convert to fraction form
170.26/234.75 = 117.70/x - Step 3: Cross multiply
170.26x = 234.75 × 117.70 - Step 4: Simplify right side
170.26x = 27,630.08 - Step 5: Solve for x
x = 27,630.08/170.26 - Step 6: Final answer
x = 162.28
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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.