Finding the Fourth Proportional to 144.26, 216.41 and 61.99
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Solution
The fourth proportional to 144.26, 216.41 and 61.99 is: 92.99
Step by Step Solution
- Step 1: Write the proportion equation
144.26 : 216.41 = 61.99 : x - Step 2: Convert to fraction form
144.26/216.41 = 61.99/x - Step 3: Cross multiply
144.26x = 216.41 × 61.99 - Step 4: Simplify right side
144.26x = 13,415.26 - Step 5: Solve for x
x = 13,415.26/144.26 - Step 6: Final answer
x = 92.99
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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.