Finding the Fourth Proportional to 289,834.12, 434,770.62 and 79,454.44
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Solution
The fourth proportional to 289,834.12, 434,770.62 and 79,454.44 is: 119,186.99
Step by Step Solution
- Step 1: Write the proportion equation
289,834.12 : 434,770.62 = 79,454.44 : x - Step 2: Convert to fraction form
289,834.12/434,770.62 = 79,454.44/x - Step 3: Cross multiply
289,834.12x = 434,770.62 × 79,454.44 - Step 4: Simplify right side
289,834.12x = 34,544,456,140.55 - Step 5: Solve for x
x = 34,544,456,140.55/289,834.12 - Step 6: Final answer
x = 119,186.99
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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.