Finding the Fourth Proportional to 189,406.26, 261,380.34 and 104,523.30
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Solution
The fourth proportional to 189,406.26, 261,380.34 and 104,523.30 is: 144,241.99
Step by Step Solution
- Step 1: Write the proportion equation
189,406.26 : 261,380.34 = 104,523.30 : x - Step 2: Convert to fraction form
189,406.26/261,380.34 = 104,523.30/x - Step 3: Cross multiply
189,406.26x = 261,380.34 × 104,523.30 - Step 4: Simplify right side
189,406.26x = 27,320,335,691.92 - Step 5: Solve for x
x = 27,320,335,691.92/189,406.26 - Step 6: Final answer
x = 144,241.99
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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.