Finding the Fourth Proportional to 324.68, 486.88 and 119.18
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Solution
The fourth proportional to 324.68, 486.88 and 119.18 is: 178.72
Step by Step Solution
- Step 1: Write the proportion equation
324.68 : 486.88 = 119.18 : x - Step 2: Convert to fraction form
324.68/486.88 = 119.18/x - Step 3: Cross multiply
324.68x = 486.88 × 119.18 - Step 4: Simplify right side
324.68x = 58,027.28 - Step 5: Solve for x
x = 58,027.28/324.68 - Step 6: Final answer
x = 178.72
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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.