Finding the Fourth Proportional to 195.14, 269.18 and 129.62
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Solution
The fourth proportional to 195.14, 269.18 and 129.62 is: 178.80
Step by Step Solution
- Step 1: Write the proportion equation
195.14 : 269.18 = 129.62 : x - Step 2: Convert to fraction form
195.14/269.18 = 129.62/x - Step 3: Cross multiply
195.14x = 269.18 × 129.62 - Step 4: Simplify right side
195.14x = 34,891.11 - Step 5: Solve for x
x = 34,891.11/195.14 - Step 6: Final answer
x = 178.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.