Finding the Fourth Proportional to 208,721.07, 313,126.97 and 68,474.43
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Solution
The fourth proportional to 208,721.07, 313,126.97 and 68,474.43 is: 102,726.53
Step by Step Solution
- Step 1: Write the proportion equation
208,721.07 : 313,126.97 = 68,474.43 : x - Step 2: Convert to fraction form
208,721.07/313,126.97 = 68,474.43/x - Step 3: Cross multiply
208,721.07x = 313,126.97 × 68,474.43 - Step 4: Simplify right side
208,721.07x = 21,441,190,446.00 - Step 5: Solve for x
x = 21,441,190,446.00/208,721.07 - Step 6: Final answer
x = 102,726.53
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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.