Finding the Fourth Proportional to 209,589.41, 313,418.42 and 155,655.94
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Solution
The fourth proportional to 209,589.41, 313,418.42 and 155,655.94 is: 232,766.72
Step by Step Solution
- Step 1: Write the proportion equation
209,589.41 : 313,418.42 = 155,655.94 : x - Step 2: Convert to fraction form
209,589.41/313,418.42 = 155,655.94/x - Step 3: Cross multiply
209,589.41x = 313,418.42 × 155,655.94 - Step 4: Simplify right side
209,589.41x = 48,785,438,778.41 - Step 5: Solve for x
x = 48,785,438,778.41/209,589.41 - Step 6: Final answer
x = 232,766.72
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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.