Finding the Fourth Proportional to 225,739.09, 311,551.68 and 139,725.67
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Solution
The fourth proportional to 225,739.09, 311,551.68 and 139,725.67 is: 192,841.07
Step by Step Solution
- Step 1: Write the proportion equation
225,739.09 : 311,551.68 = 139,725.67 : x - Step 2: Convert to fraction form
225,739.09/311,551.68 = 139,725.67/x - Step 3: Cross multiply
225,739.09x = 311,551.68 × 139,725.67 - Step 4: Simplify right side
225,739.09x = 43,531,767,227.63 - Step 5: Solve for x
x = 43,531,767,227.63/225,739.09 - Step 6: Final answer
x = 192,841.07
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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.