Finding the Fourth Proportional to 187.17, 280.49 and 114.99
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Solution
The fourth proportional to 187.17, 280.49 and 114.99 is: 172.32
Step by Step Solution
- Step 1: Write the proportion equation
187.17 : 280.49 = 114.99 : x - Step 2: Convert to fraction form
187.17/280.49 = 114.99/x - Step 3: Cross multiply
187.17x = 280.49 × 114.99 - Step 4: Simplify right side
187.17x = 32,252.97 - Step 5: Solve for x
x = 32,252.97/187.17 - Step 6: Final answer
x = 172.32
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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.