Finding the Fourth Proportional to 381,555.26, 572,345.19 and 191,912.14
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Solution
The fourth proportional to 381,555.26, 572,345.19 and 191,912.14 is: 287,874.39
Step by Step Solution
- Step 1: Write the proportion equation
381,555.26 : 572,345.19 = 191,912.14 : x - Step 2: Convert to fraction form
381,555.26/572,345.19 = 191,912.14/x - Step 3: Cross multiply
381,555.26x = 572,345.19 × 191,912.14 - Step 4: Simplify right side
381,555.26x = 109,839,987,727.60 - Step 5: Solve for x
x = 109,839,987,727.60/381,555.26 - Step 6: Final answer
x = 287,874.39
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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.