Finding the Fourth Proportional to 371,311.68, 512,409.60 and 210,163.84
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Solution
The fourth proportional to 371,311.68, 512,409.60 and 210,163.84 is: 290,025.81
Step by Step Solution
- Step 1: Write the proportion equation
371,311.68 : 512,409.60 = 210,163.84 : x - Step 2: Convert to fraction form
371,311.68/512,409.60 = 210,163.84/x - Step 3: Cross multiply
371,311.68x = 512,409.60 × 210,163.84 - Step 4: Simplify right side
371,311.68x = 107,689,969,188.86 - Step 5: Solve for x
x = 107,689,969,188.86/371,311.68 - Step 6: Final answer
x = 290,025.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.