Finding the Fourth Proportional to 183.09, 252.81 and 136.99
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Solution
The fourth proportional to 183.09, 252.81 and 136.99 is: 189.14
Step by Step Solution
- Step 1: Write the proportion equation
183.09 : 252.81 = 136.99 : x - Step 2: Convert to fraction form
183.09/252.81 = 136.99/x - Step 3: Cross multiply
183.09x = 252.81 × 136.99 - Step 4: Simplify right side
183.09x = 34,630.49 - Step 5: Solve for x
x = 34,630.49/183.09 - Step 6: Final answer
x = 189.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.