Finding the Fourth Proportional to 287,836.18, 431,492.91 and 100,745.62
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Solution
The fourth proportional to 287,836.18, 431,492.91 and 100,745.62 is: 151,026.95
Step by Step Solution
- Step 1: Write the proportion equation
287,836.18 : 431,492.91 = 100,745.62 : x - Step 2: Convert to fraction form
287,836.18/431,492.91 = 100,745.62/x - Step 3: Cross multiply
287,836.18x = 431,492.91 × 100,745.62 - Step 4: Simplify right side
287,836.18x = 43,471,020,743.55 - Step 5: Solve for x
x = 43,471,020,743.55/287,836.18 - Step 6: Final answer
x = 151,026.95
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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.