Finding the Fourth Proportional to 214,861.20, 322,163.80 and 131,814.80
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Solution
The fourth proportional to 214,861.20, 322,163.80 and 131,814.80 is: 197,643.67
Step by Step Solution
- Step 1: Write the proportion equation
214,861.20 : 322,163.80 = 131,814.80 : x - Step 2: Convert to fraction form
214,861.20/322,163.80 = 131,814.80/x - Step 3: Cross multiply
214,861.20x = 322,163.80 × 131,814.80 - Step 4: Simplify right side
214,861.20x = 42,465,956,864.24 - Step 5: Solve for x
x = 42,465,956,864.24/214,861.20 - Step 6: Final answer
x = 197,643.67
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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.