Finding the Fourth Proportional to 187.19, 280.70 and 84.44
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Solution
The fourth proportional to 187.19, 280.70 and 84.44 is: 126.63
Step by Step Solution
- Step 1: Write the proportion equation
187.19 : 280.70 = 84.44 : x - Step 2: Convert to fraction form
187.19/280.70 = 84.44/x - Step 3: Cross multiply
187.19x = 280.70 × 84.44 - Step 4: Simplify right side
187.19x = 23,703.26 - Step 5: Solve for x
x = 23,703.26/187.19 - Step 6: Final answer
x = 126.63
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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.