Finding the Fourth Proportional to 170.17, 254.99 and 115.26
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Solution
The fourth proportional to 170.17, 254.99 and 115.26 is: 172.71
Step by Step Solution
- Step 1: Write the proportion equation
170.17 : 254.99 = 115.26 : x - Step 2: Convert to fraction form
170.17/254.99 = 115.26/x - Step 3: Cross multiply
170.17x = 254.99 × 115.26 - Step 4: Simplify right side
170.17x = 29,390.15 - Step 5: Solve for x
x = 29,390.15/170.17 - Step 6: Final answer
x = 172.71
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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.