Finding the Fourth Proportional to 170.36, 254.55 and 126.26
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Solution
The fourth proportional to 170.36, 254.55 and 126.26 is: 188.65
Step by Step Solution
- Step 1: Write the proportion equation
170.36 : 254.55 = 126.26 : x - Step 2: Convert to fraction form
170.36/254.55 = 126.26/x - Step 3: Cross multiply
170.36x = 254.55 × 126.26 - Step 4: Simplify right side
170.36x = 32,138.21 - Step 5: Solve for x
x = 32,138.21/170.36 - Step 6: Final answer
x = 188.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.