Finding the Fourth Proportional to 170.46, 234.99 and 135.18
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Solution
The fourth proportional to 170.46, 234.99 and 135.18 is: 186.35
Step by Step Solution
- Step 1: Write the proportion equation
170.46 : 234.99 = 135.18 : x - Step 2: Convert to fraction form
170.46/234.99 = 135.18/x - Step 3: Cross multiply
170.46x = 234.99 × 135.18 - Step 4: Simplify right side
170.46x = 31,765.95 - Step 5: Solve for x
x = 31,765.95/170.46 - Step 6: Final answer
x = 186.35
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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.