Finding the Fourth Proportional to 189,768.36, 261,893.92 and 104,883.60
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Solution
The fourth proportional to 189,768.36, 261,893.92 and 104,883.60 is: 144,746.88
Step by Step Solution
- Step 1: Write the proportion equation
189,768.36 : 261,893.92 = 104,883.60 : x - Step 2: Convert to fraction form
189,768.36/261,893.92 = 104,883.60/x - Step 3: Cross multiply
189,768.36x = 261,893.92 × 104,883.60 - Step 4: Simplify right side
189,768.36x = 27,468,377,147.71 - Step 5: Solve for x
x = 27,468,377,147.71/189,768.36 - Step 6: Final answer
x = 144,746.88
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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.