Finding the Fourth Proportional to 208,440.24, 312,704.36 and 80,359.80
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Solution
The fourth proportional to 208,440.24, 312,704.36 and 80,359.80 is: 120,556.66
Step by Step Solution
- Step 1: Write the proportion equation
208,440.24 : 312,704.36 = 80,359.80 : x - Step 2: Convert to fraction form
208,440.24/312,704.36 = 80,359.80/x - Step 3: Cross multiply
208,440.24x = 312,704.36 × 80,359.80 - Step 4: Simplify right side
208,440.24x = 25,128,859,828.73 - Step 5: Solve for x
x = 25,128,859,828.73/208,440.24 - Step 6: Final answer
x = 120,556.66
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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.