Finding the Fourth Proportional to 170.41, 235.20 and 108.19
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Solution
The fourth proportional to 170.41, 235.20 and 108.19 is: 149.33
Step by Step Solution
- Step 1: Write the proportion equation
170.41 : 235.20 = 108.19 : x - Step 2: Convert to fraction form
170.41/235.20 = 108.19/x - Step 3: Cross multiply
170.41x = 235.20 × 108.19 - Step 4: Simplify right side
170.41x = 25,446.99 - Step 5: Solve for x
x = 25,446.99/170.41 - Step 6: Final answer
x = 149.33
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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.