Finding the Fourth Proportional to 371,755.44, 513,015.12 and 201,990.78
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Solution
The fourth proportional to 371,755.44, 513,015.12 and 201,990.78 is: 278,743.26
Step by Step Solution
- Step 1: Write the proportion equation
371,755.44 : 513,015.12 = 201,990.78 : x - Step 2: Convert to fraction form
371,755.44/513,015.12 = 201,990.78/x - Step 3: Cross multiply
371,755.44x = 513,015.12 × 201,990.78 - Step 4: Simplify right side
371,755.44x = 103,624,324,240.59 - Step 5: Solve for x
x = 103,624,324,240.59/371,755.44 - Step 6: Final answer
x = 278,743.26
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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.