Finding the Fourth Proportional to 193.78, 290.26 and 132.63
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Solution
The fourth proportional to 193.78, 290.26 and 132.63 is: 198.66
Step by Step Solution
- Step 1: Write the proportion equation
193.78 : 290.26 = 132.63 : x - Step 2: Convert to fraction form
193.78/290.26 = 132.63/x - Step 3: Cross multiply
193.78x = 290.26 × 132.63 - Step 4: Simplify right side
193.78x = 38,497.18 - Step 5: Solve for x
x = 38,497.18/193.78 - Step 6: Final answer
x = 198.66
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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.