Finding the Fourth Proportional to 193.93, 290.97 and 91.19
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Solution
The fourth proportional to 193.93, 290.97 and 91.19 is: 136.83
Step by Step Solution
- Step 1: Write the proportion equation
193.93 : 290.97 = 91.19 : x - Step 2: Convert to fraction form
193.93/290.97 = 91.19/x - Step 3: Cross multiply
193.93x = 290.97 × 91.19 - Step 4: Simplify right side
193.93x = 26,534.28 - Step 5: Solve for x
x = 26,534.28/193.93 - Step 6: Final answer
x = 136.83
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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.