Finding the Fourth Proportional to 208,912.19, 313,248.11 and 111,418.53
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Solution
The fourth proportional to 208,912.19, 313,248.11 and 111,418.53 is: 167,063.70
Step by Step Solution
- Step 1: Write the proportion equation
208,912.19 : 313,248.11 = 111,418.53 : x - Step 2: Convert to fraction form
208,912.19/313,248.11 = 111,418.53/x - Step 3: Cross multiply
208,912.19x = 313,248.11 × 111,418.53 - Step 4: Simplify right side
208,912.19x = 34,901,643,717.44 - Step 5: Solve for x
x = 34,901,643,717.44/208,912.19 - Step 6: Final answer
x = 167,063.70
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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.