Finding the Fourth Proportional to 246,609.81, 340,331.18 and 139,183.56
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Solution
The fourth proportional to 246,609.81, 340,331.18 and 139,183.56 is: 192,078.75
Step by Step Solution
- Step 1: Write the proportion equation
246,609.81 : 340,331.18 = 139,183.56 : x - Step 2: Convert to fraction form
246,609.81/340,331.18 = 139,183.56/x - Step 3: Cross multiply
246,609.81x = 340,331.18 × 139,183.56 - Step 4: Simplify right side
246,609.81x = 47,368,504,515.48 - Step 5: Solve for x
x = 47,368,504,515.48/246,609.81 - Step 6: Final answer
x = 192,078.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.