Finding the Fourth Proportional to 183.18, 252.75 and 157.05
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Solution
The fourth proportional to 183.18, 252.75 and 157.05 is: 216.70
Step by Step Solution
- Step 1: Write the proportion equation
183.18 : 252.75 = 157.05 : x - Step 2: Convert to fraction form
183.18/252.75 = 157.05/x - Step 3: Cross multiply
183.18x = 252.75 × 157.05 - Step 4: Simplify right side
183.18x = 39,694.39 - Step 5: Solve for x
x = 39,694.39/183.18 - Step 6: Final answer
x = 216.70
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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.