Finding the Fourth Proportional to 371,879.44, 513,197.64 and 202,113.60
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Solution
The fourth proportional to 371,879.44, 513,197.64 and 202,113.60 is: 278,918.95
Step by Step Solution
- Step 1: Write the proportion equation
371,879.44 : 513,197.64 = 202,113.60 : x - Step 2: Convert to fraction form
371,879.44/513,197.64 = 202,113.60/x - Step 3: Cross multiply
371,879.44x = 513,197.64 × 202,113.60 - Step 4: Simplify right side
371,879.44x = 103,724,222,531.90 - Step 5: Solve for x
x = 103,724,222,531.90/371,879.44 - Step 6: Final answer
x = 278,918.95
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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.