Finding the Fourth Proportional to 193.87, 290.97 and 125.18
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Solution
The fourth proportional to 193.87, 290.97 and 125.18 is: 187.88
Step by Step Solution
- Step 1: Write the proportion equation
193.87 : 290.97 = 125.18 : x - Step 2: Convert to fraction form
193.87/290.97 = 125.18/x - Step 3: Cross multiply
193.87x = 290.97 × 125.18 - Step 4: Simplify right side
193.87x = 36,423.62 - Step 5: Solve for x
x = 36,423.62/193.87 - 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.