Finding the Fourth Proportional to 355,325.09, 490,435.75 and 202,453.49
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Solution
The fourth proportional to 355,325.09, 490,435.75 and 202,453.49 is: 279,435.45
Step by Step Solution
- Step 1: Write the proportion equation
355,325.09 : 490,435.75 = 202,453.49 : x - Step 2: Convert to fraction form
355,325.09/490,435.75 = 202,453.49/x - Step 3: Cross multiply
355,325.09x = 490,435.75 × 202,453.49 - Step 4: Simplify right side
355,325.09x = 99,290,425,743.82 - Step 5: Solve for x
x = 99,290,425,743.82/355,325.09 - Step 6: Final answer
x = 279,435.45
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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.