Finding the Fourth Proportional to 225.44, 311.08 and 132.21
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Solution
The fourth proportional to 225.44, 311.08 and 132.21 is: 182.44
Step by Step Solution
- Step 1: Write the proportion equation
225.44 : 311.08 = 132.21 : x - Step 2: Convert to fraction form
225.44/311.08 = 132.21/x - Step 3: Cross multiply
225.44x = 311.08 × 132.21 - Step 4: Simplify right side
225.44x = 41,129.06 - Step 5: Solve for x
x = 41,129.06/225.44 - Step 6: Final answer
x = 182.44
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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.