Finding the Fourth Proportional to 189,739.20, 284,608.80 and 165,163.20
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Solution
The fourth proportional to 189,739.20, 284,608.80 and 165,163.20 is: 247,744.80
Step by Step Solution
- Step 1: Write the proportion equation
189,739.20 : 284,608.80 = 165,163.20 : x - Step 2: Convert to fraction form
189,739.20/284,608.80 = 165,163.20/x - Step 3: Cross multiply
189,739.20x = 284,608.80 × 165,163.20 - Step 4: Simplify right side
189,739.20x = 47,006,900,156.16 - Step 5: Solve for x
x = 47,006,900,156.16/189,739.20 - Step 6: Final answer
x = 247,744.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.