Finding the Fourth Proportional to 329.96, 455.43 and 236.99
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Solution
The fourth proportional to 329.96, 455.43 and 236.99 is: 327.10
Step by Step Solution
- Step 1: Write the proportion equation
329.96 : 455.43 = 236.99 : x - Step 2: Convert to fraction form
329.96/455.43 = 236.99/x - Step 3: Cross multiply
329.96x = 455.43 × 236.99 - Step 4: Simplify right side
329.96x = 107,930.08 - Step 5: Solve for x
x = 107,930.08/329.96 - Step 6: Final answer
x = 327.10
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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.