Finding the Fourth Proportional to 193.44, 290.36 and 132.36
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Solution
The fourth proportional to 193.44, 290.36 and 132.36 is: 198.68
Step by Step Solution
- Step 1: Write the proportion equation
193.44 : 290.36 = 132.36 : x - Step 2: Convert to fraction form
193.44/290.36 = 132.36/x - Step 3: Cross multiply
193.44x = 290.36 × 132.36 - Step 4: Simplify right side
193.44x = 38,432.05 - Step 5: Solve for x
x = 38,432.05/193.44 - Step 6: Final answer
x = 198.68
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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.