Finding the Fourth Proportional to 276,222.68, 381,198.68 and 155,369.60
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Solution
The fourth proportional to 276,222.68, 381,198.68 and 155,369.60 is: 214,416.45
Step by Step Solution
- Step 1: Write the proportion equation
276,222.68 : 381,198.68 = 155,369.60 : x - Step 2: Convert to fraction form
276,222.68/381,198.68 = 155,369.60/x - Step 3: Cross multiply
276,222.68x = 381,198.68 × 155,369.60 - Step 4: Simplify right side
276,222.68x = 59,226,686,432.13 - Step 5: Solve for x
x = 59,226,686,432.13/276,222.68 - Step 6: Final answer
x = 214,416.45
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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.