Finding the Fourth Proportional to 144.21, 216.27 and 48
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Solution
The fourth proportional to 144.21, 216.27 and 48 is: 71.99
Step by Step Solution
- Step 1: Write the proportion equation
144.21 : 216.27 = 48 : x - Step 2: Convert to fraction form
144.21/216.27 = 48/x - Step 3: Cross multiply
144.21x = 216.27 × 48 - Step 4: Simplify right side
144.21x = 10,380.96 - Step 5: Solve for x
x = 10,380.96/144.21 - Step 6: Final answer
x = 71.99
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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.