Finding the Fourth Proportional to 381,396.50, 572,076.17 and 141,557.09
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Solution
The fourth proportional to 381,396.50, 572,076.17 and 141,557.09 is: 212,328.73
Step by Step Solution
- Step 1: Write the proportion equation
381,396.50 : 572,076.17 = 141,557.09 : x - Step 2: Convert to fraction form
381,396.50/572,076.17 = 141,557.09/x - Step 3: Cross multiply
381,396.50x = 572,076.17 × 141,557.09 - Step 4: Simplify right side
381,396.50x = 80,981,434,846.22 - Step 5: Solve for x
x = 80,981,434,846.22/381,396.50 - Step 6: Final answer
x = 212,328.73
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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.