Finding the Fourth Proportional to 194.84, 269.08 and 153.70
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Solution
The fourth proportional to 194.84, 269.08 and 153.70 is: 212.27
Step by Step Solution
- Step 1: Write the proportion equation
194.84 : 269.08 = 153.70 : x - Step 2: Convert to fraction form
194.84/269.08 = 153.70/x - Step 3: Cross multiply
194.84x = 269.08 × 153.70 - Step 4: Simplify right side
194.84x = 41,357.62 - Step 5: Solve for x
x = 41,357.62/194.84 - Step 6: Final answer
x = 212.27
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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.