Finding the Fourth Proportional to 193.95, 290.84 and 91.26
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Solution
The fourth proportional to 193.95, 290.84 and 91.26 is: 136.85
Step by Step Solution
- Step 1: Write the proportion equation
193.95 : 290.84 = 91.26 : x - Step 2: Convert to fraction form
193.95/290.84 = 91.26/x - Step 3: Cross multiply
193.95x = 290.84 × 91.26 - Step 4: Simplify right side
193.95x = 26,541.60 - Step 5: Solve for x
x = 26,541.60/193.95 - Step 6: Final answer
x = 136.85
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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.