Finding the Fourth Proportional to 208,591.11, 312,748.43 and 75,453.84
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Solution
The fourth proportional to 208,591.11, 312,748.43 and 75,453.84 is: 113,130.75
Step by Step Solution
- Step 1: Write the proportion equation
208,591.11 : 312,748.43 = 75,453.84 : x - Step 2: Convert to fraction form
208,591.11/312,748.43 = 75,453.84/x - Step 3: Cross multiply
208,591.11x = 312,748.43 × 75,453.84 - Step 4: Simplify right side
208,591.11x = 23,598,069,620.20 - Step 5: Solve for x
x = 23,598,069,620.20/208,591.11 - Step 6: Final answer
x = 113,130.75
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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.