Finding the Fourth Proportional to 170.28, 234.95 and 133.70
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Solution
The fourth proportional to 170.28, 234.95 and 133.70 is: 184.47
Step by Step Solution
- Step 1: Write the proportion equation
170.28 : 234.95 = 133.70 : x - Step 2: Convert to fraction form
170.28/234.95 = 133.70/x - Step 3: Cross multiply
170.28x = 234.95 × 133.70 - Step 4: Simplify right side
170.28x = 31,410.97 - Step 5: Solve for x
x = 31,410.97/170.28 - Step 6: Final answer
x = 184.47
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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.