Finding the Fourth Proportional to 325.63, 488.40 and 163.18
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Solution
The fourth proportional to 325.63, 488.40 and 163.18 is: 244.75
Step by Step Solution
- Step 1: Write the proportion equation
325.63 : 488.40 = 163.18 : x - Step 2: Convert to fraction form
325.63/488.40 = 163.18/x - Step 3: Cross multiply
325.63x = 488.40 × 163.18 - Step 4: Simplify right side
325.63x = 79,697.11 - Step 5: Solve for x
x = 79,697.11/325.63 - Step 6: Final answer
x = 244.75
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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.