Finding the Fourth Proportional to 280,178.93, 420,122.39 and 100,194.99
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Solution
The fourth proportional to 280,178.93, 420,122.39 and 100,194.99 is: 150,240.27
Step by Step Solution
- Step 1: Write the proportion equation
280,178.93 : 420,122.39 = 100,194.99 : x - Step 2: Convert to fraction form
280,178.93/420,122.39 = 100,194.99/x - Step 3: Cross multiply
280,178.93x = 420,122.39 × 100,194.99 - Step 4: Simplify right side
280,178.93x = 42,094,158,163.85 - Step 5: Solve for x
x = 42,094,158,163.85/280,178.93 - Step 6: Final answer
x = 150,240.27
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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.