Finding the Fourth Proportional to 393,436.74, 590,745.60 and 225,147.09
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Solution
The fourth proportional to 393,436.74, 590,745.60 and 225,147.09 is: 338,058.55
Step by Step Solution
- Step 1: Write the proportion equation
393,436.74 : 590,745.60 = 225,147.09 : x - Step 2: Convert to fraction form
393,436.74/590,745.60 = 225,147.09/x - Step 3: Cross multiply
393,436.74x = 590,745.60 × 225,147.09 - Step 4: Simplify right side
393,436.74x = 133,004,652,770.30 - Step 5: Solve for x
x = 133,004,652,770.30/393,436.74 - Step 6: Final answer
x = 338,058.55
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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.