Finding the Fourth Proportional to 225,617.18, 311,318.07 and 139,662.62
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Solution
The fourth proportional to 225,617.18, 311,318.07 and 139,662.62 is: 192,713.59
Step by Step Solution
- Step 1: Write the proportion equation
225,617.18 : 311,318.07 = 139,662.62 : x - Step 2: Convert to fraction form
225,617.18/311,318.07 = 139,662.62/x - Step 3: Cross multiply
225,617.18x = 311,318.07 × 139,662.62 - Step 4: Simplify right side
225,617.18x = 43,479,497,309.54 - Step 5: Solve for x
x = 43,479,497,309.54/225,617.18 - Step 6: Final answer
x = 192,713.59
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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.