Finding the Fourth Proportional to 287,077.95, 395,756.97 and 201,930.75
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Solution
The fourth proportional to 287,077.95, 395,756.97 and 201,930.75 is: 278,375.62
Step by Step Solution
- Step 1: Write the proportion equation
287,077.95 : 395,756.97 = 201,930.75 : x - Step 2: Convert to fraction form
287,077.95/395,756.97 = 201,930.75/x - Step 3: Cross multiply
287,077.95x = 395,756.97 × 201,930.75 - Step 4: Simplify right side
287,077.95x = 79,915,501,769.83 - Step 5: Solve for x
x = 79,915,501,769.83/287,077.95 - Step 6: Final answer
x = 278,375.62
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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.