Finding the Fourth Proportional to 170.76, 235.08 and 126.84
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Solution
The fourth proportional to 170.76, 235.08 and 126.84 is: 174.62
Step by Step Solution
- Step 1: Write the proportion equation
170.76 : 235.08 = 126.84 : x - Step 2: Convert to fraction form
170.76/235.08 = 126.84/x - Step 3: Cross multiply
170.76x = 235.08 × 126.84 - Step 4: Simplify right side
170.76x = 29,817.55 - Step 5: Solve for x
x = 29,817.55/170.76 - Step 6: Final answer
x = 174.62
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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.