Finding the Fourth Proportional to 209,137.58, 313,707.42 and 51,366.08
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Solution
The fourth proportional to 209,137.58, 313,707.42 and 51,366.08 is: 77,049.38
Step by Step Solution
- Step 1: Write the proportion equation
209,137.58 : 313,707.42 = 51,366.08 : x - Step 2: Convert to fraction form
209,137.58/313,707.42 = 51,366.08/x - Step 3: Cross multiply
209,137.58x = 313,707.42 × 51,366.08 - Step 4: Simplify right side
209,137.58x = 16,113,920,432.31 - Step 5: Solve for x
x = 16,113,920,432.31/209,137.58 - Step 6: Final answer
x = 77,049.38
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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.