Finding the Fourth Proportional to 170.40, 235.05 and 163.26
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Solution
The fourth proportional to 170.40, 235.05 and 163.26 is: 225.20
Step by Step Solution
- Step 1: Write the proportion equation
170.40 : 235.05 = 163.26 : x - Step 2: Convert to fraction form
170.40/235.05 = 163.26/x - Step 3: Cross multiply
170.40x = 235.05 × 163.26 - Step 4: Simplify right side
170.40x = 38,374.26 - Step 5: Solve for x
x = 38,374.26/170.40 - Step 6: Final answer
x = 225.20
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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.