Finding the Fourth Proportional to 381,290.09, 571,033.19 and 331,097.49
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Solution
The fourth proportional to 381,290.09, 571,033.19 and 331,097.49 is: 495,863.03
Step by Step Solution
- Step 1: Write the proportion equation
381,290.09 : 571,033.19 = 331,097.49 : x - Step 2: Convert to fraction form
381,290.09/571,033.19 = 331,097.49/x - Step 3: Cross multiply
381,290.09x = 571,033.19 × 331,097.49 - Step 4: Simplify right side
381,290.09x = 189,067,656,743.44 - Step 5: Solve for x
x = 189,067,656,743.44/381,290.09 - Step 6: Final answer
x = 495,863.03
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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.