Finding the Fourth Proportional to 280,289.36, 420,183.99 and 102,754.91
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Solution
The fourth proportional to 280,289.36, 420,183.99 and 102,754.91 is: 154,040.69
Step by Step Solution
- Step 1: Write the proportion equation
280,289.36 : 420,183.99 = 102,754.91 : x - Step 2: Convert to fraction form
280,289.36/420,183.99 = 102,754.91/x - Step 3: Cross multiply
280,289.36x = 420,183.99 × 102,754.91 - Step 4: Simplify right side
280,289.36x = 43,175,965,974.97 - Step 5: Solve for x
x = 43,175,965,974.97/280,289.36 - Step 6: Final answer
x = 154,040.69
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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.