Finding the Fourth Proportional to 144.69, 216.11 and 141.05
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Solution
The fourth proportional to 144.69, 216.11 and 141.05 is: 210.66
Step by Step Solution
- Step 1: Write the proportion equation
144.69 : 216.11 = 141.05 : x - Step 2: Convert to fraction form
144.69/216.11 = 141.05/x - Step 3: Cross multiply
144.69x = 216.11 × 141.05 - Step 4: Simplify right side
144.69x = 30,480.53 - Step 5: Solve for x
x = 30,480.53/144.69 - Step 6: Final answer
x = 210.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.