Finding the Fourth Proportional to 393,635.85, 543,201.84 and 232,542.78
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Solution
The fourth proportional to 393,635.85, 543,201.84 and 232,542.78 is: 320,899.80
Step by Step Solution
- Step 1: Write the proportion equation
393,635.85 : 543,201.84 = 232,542.78 : x - Step 2: Convert to fraction form
393,635.85/543,201.84 = 232,542.78/x - Step 3: Cross multiply
393,635.85x = 543,201.84 × 232,542.78 - Step 4: Simplify right side
393,635.85x = 126,317,665,974.72 - Step 5: Solve for x
x = 126,317,665,974.72/393,635.85 - Step 6: Final answer
x = 320,899.80
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1.5x scale
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.