Finding the Fourth Proportional to 287,193.06, 430,986.42 and 100,204.56
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Solution
The fourth proportional to 287,193.06, 430,986.42 and 100,204.56 is: 150,375.52
Step by Step Solution
- Step 1: Write the proportion equation
287,193.06 : 430,986.42 = 100,204.56 : x - Step 2: Convert to fraction form
287,193.06/430,986.42 = 100,204.56/x - Step 3: Cross multiply
287,193.06x = 430,986.42 × 100,204.56 - Step 4: Simplify right side
287,193.06x = 43,186,804,582.08 - Step 5: Solve for x
x = 43,186,804,582.08/287,193.06 - Step 6: Final answer
x = 150,375.52
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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.