Finding the Fourth Proportional to 194.14, 290.78 and 125.44
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Solution
The fourth proportional to 194.14, 290.78 and 125.44 is: 187.88
Step by Step Solution
- Step 1: Write the proportion equation
194.14 : 290.78 = 125.44 : x - Step 2: Convert to fraction form
194.14/290.78 = 125.44/x - Step 3: Cross multiply
194.14x = 290.78 × 125.44 - Step 4: Simplify right side
194.14x = 36,473.99 - Step 5: Solve for x
x = 36,473.99/194.14 - Step 6: Final answer
x = 187.88
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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.