Finding the Fourth Proportional to 381,059.08, 571,589.62 and 128,516.96
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Solution
The fourth proportional to 381,059.08, 571,589.62 and 128,516.96 is: 192,775.78
Step by Step Solution
- Step 1: Write the proportion equation
381,059.08 : 571,589.62 = 128,516.96 : x - Step 2: Convert to fraction form
381,059.08/571,589.62 = 128,516.96/x - Step 3: Cross multiply
381,059.08x = 571,589.62 × 128,516.96 - Step 4: Simplify right side
381,059.08x = 73,458,961,437.64 - Step 5: Solve for x
x = 73,458,961,437.64/381,059.08 - Step 6: Final answer
x = 192,775.78
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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.