Finding the Fourth Proportional to 273.96, 378.08 and 163.36
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Solution
The fourth proportional to 273.96, 378.08 and 163.36 is: 225.45
Step by Step Solution
- Step 1: Write the proportion equation
273.96 : 378.08 = 163.36 : x - Step 2: Convert to fraction form
273.96/378.08 = 163.36/x - Step 3: Cross multiply
273.96x = 378.08 × 163.36 - Step 4: Simplify right side
273.96x = 61,763.15 - Step 5: Solve for x
x = 61,763.15/273.96 - Step 6: Final answer
x = 225.45
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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.