Finding the Fourth Proportional to 252,754.75, 379,423.73 and 128,358.19
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Solution
The fourth proportional to 252,754.75, 379,423.73 and 128,358.19 is: 192,685.37
Step by Step Solution
- Step 1: Write the proportion equation
252,754.75 : 379,423.73 = 128,358.19 : x - Step 2: Convert to fraction form
252,754.75/379,423.73 = 128,358.19/x - Step 3: Cross multiply
252,754.75x = 379,423.73 × 128,358.19 - Step 4: Simplify right side
252,754.75x = 48,702,143,225.85 - Step 5: Solve for x
x = 48,702,143,225.85/252,754.75 - Step 6: Final answer
x = 192,685.37
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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.