Finding the Fourth Proportional to 189,439.09, 261,407.32 and 104,550.68
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Solution
The fourth proportional to 189,439.09, 261,407.32 and 104,550.68 is: 144,269.66
Step by Step Solution
- Step 1: Write the proportion equation
189,439.09 : 261,407.32 = 104,550.68 : x - Step 2: Convert to fraction form
189,439.09/261,407.32 = 104,550.68/x - Step 3: Cross multiply
189,439.09x = 261,407.32 × 104,550.68 - Step 4: Simplify right side
189,439.09x = 27,330,313,455.12 - Step 5: Solve for x
x = 27,330,313,455.12/189,439.09 - Step 6: Final answer
x = 144,269.66
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1.5x scale
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.