Finding the Fourth Proportional to 187.68, 281.10 and 157.26
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Solution
The fourth proportional to 187.68, 281.10 and 157.26 is: 235.54
Step by Step Solution
- Step 1: Write the proportion equation
187.68 : 281.10 = 157.26 : x - Step 2: Convert to fraction form
187.68/281.10 = 157.26/x - Step 3: Cross multiply
187.68x = 281.10 × 157.26 - Step 4: Simplify right side
187.68x = 44,205.79 - Step 5: Solve for x
x = 44,205.79/187.68 - Step 6: Final answer
x = 235.54
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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.