Finding the Fourth Proportional to 171.26, 236.36 and 97.60
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Solution
The fourth proportional to 171.26, 236.36 and 97.60 is: 134.70
Step by Step Solution
- Step 1: Write the proportion equation
171.26 : 236.36 = 97.60 : x - Step 2: Convert to fraction form
171.26/236.36 = 97.60/x - Step 3: Cross multiply
171.26x = 236.36 × 97.60 - Step 4: Simplify right side
171.26x = 23,068.74 - Step 5: Solve for x
x = 23,068.74/171.26 - Step 6: Final answer
x = 134.70
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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.