Finding the Fourth Proportional to 324.36, 486.39 and 93.19
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Solution
The fourth proportional to 324.36, 486.39 and 93.19 is: 139.75
Step by Step Solution
- Step 1: Write the proportion equation
324.36 : 486.39 = 93.19 : x - Step 2: Convert to fraction form
324.36/486.39 = 93.19/x - Step 3: Cross multiply
324.36x = 486.39 × 93.19 - Step 4: Simplify right side
324.36x = 45,328.13 - Step 5: Solve for x
x = 45,328.13/324.36 - Step 6: Final answer
x = 139.75
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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.