Finding the Fourth Proportional to 381,380.26, 571,989.39 and 144,639.94
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Solution
The fourth proportional to 381,380.26, 571,989.39 and 144,639.94 is: 216,929.19
Step by Step Solution
- Step 1: Write the proportion equation
381,380.26 : 571,989.39 = 144,639.94 : x - Step 2: Convert to fraction form
381,380.26/571,989.39 = 144,639.94/x - Step 3: Cross multiply
381,380.26x = 571,989.39 × 144,639.94 - Step 4: Simplify right side
381,380.26x = 82,732,511,050.24 - Step 5: Solve for x
x = 82,732,511,050.24/381,380.26 - Step 6: Final answer
x = 216,929.19
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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.