Finding the Fourth Proportional to 189,198.36, 261,088.74 and 104,313.24
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Solution
The fourth proportional to 189,198.36, 261,088.74 and 104,313.24 is: 143,949.52
Step by Step Solution
- Step 1: Write the proportion equation
189,198.36 : 261,088.74 = 104,313.24 : x - Step 2: Convert to fraction form
189,198.36/261,088.74 = 104,313.24/x - Step 3: Cross multiply
189,198.36x = 261,088.74 × 104,313.24 - Step 4: Simplify right side
189,198.36x = 27,235,012,396.92 - Step 5: Solve for x
x = 27,235,012,396.92/189,198.36 - Step 6: Final answer
x = 143,949.52
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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.