Finding the Fourth Proportional to 393,591.96, 590,391.36 and 113,109.12
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Solution
The fourth proportional to 393,591.96, 590,391.36 and 113,109.12 is: 169,664.66
Step by Step Solution
- Step 1: Write the proportion equation
393,591.96 : 590,391.36 = 113,109.12 : x - Step 2: Convert to fraction form
393,591.96/590,391.36 = 113,109.12/x - Step 3: Cross multiply
393,591.96x = 590,391.36 × 113,109.12 - Step 4: Simplify right side
393,591.96x = 66,778,647,185.20 - Step 5: Solve for x
x = 66,778,647,185.20/393,591.96 - Step 6: Final answer
x = 169,664.66
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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.