Finding the Fourth Proportional to 170.62, 235.36 and 108.43
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Solution
The fourth proportional to 170.62, 235.36 and 108.43 is: 149.57
Step by Step Solution
- Step 1: Write the proportion equation
170.62 : 235.36 = 108.43 : x - Step 2: Convert to fraction form
170.62/235.36 = 108.43/x - Step 3: Cross multiply
170.62x = 235.36 × 108.43 - Step 4: Simplify right side
170.62x = 25,520.08 - Step 5: Solve for x
x = 25,520.08/170.62 - Step 6: Final answer
x = 149.57
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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.