Finding the Fourth Proportional to 170.14, 254.97 and 84.70
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Solution
The fourth proportional to 170.14, 254.97 and 84.70 is: 126.93
Step by Step Solution
- Step 1: Write the proportion equation
170.14 : 254.97 = 84.70 : x - Step 2: Convert to fraction form
170.14/254.97 = 84.70/x - Step 3: Cross multiply
170.14x = 254.97 × 84.70 - Step 4: Simplify right side
170.14x = 21,595.96 - Step 5: Solve for x
x = 21,595.96/170.14 - Step 6: Final answer
x = 126.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.