Finding the Fourth Proportional to 209,343.22, 313,872.69 and 106,507.80
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Solution
The fourth proportional to 209,343.22, 313,872.69 and 106,507.80 is: 159,689.38
Step by Step Solution
- Step 1: Write the proportion equation
209,343.22 : 313,872.69 = 106,507.80 : x - Step 2: Convert to fraction form
209,343.22/313,872.69 = 106,507.80/x - Step 3: Cross multiply
209,343.22x = 313,872.69 × 106,507.80 - Step 4: Simplify right side
209,343.22x = 33,429,889,691.98 - Step 5: Solve for x
x = 33,429,889,691.98/209,343.22 - Step 6: Final answer
x = 159,689.38
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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.