Finding the Fourth Proportional to 209,176.88, 313,772.70 and 67,003.68
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Solution
The fourth proportional to 209,176.88, 313,772.70 and 67,003.68 is: 100,507.88
Step by Step Solution
- Step 1: Write the proportion equation
209,176.88 : 313,772.70 = 67,003.68 : x - Step 2: Convert to fraction form
209,176.88/313,772.70 = 67,003.68/x - Step 3: Cross multiply
209,176.88x = 313,772.70 × 67,003.68 - Step 4: Simplify right side
209,176.88x = 21,023,925,583.54 - Step 5: Solve for x
x = 21,023,925,583.54/209,176.88 - Step 6: Final answer
x = 100,507.88
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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.