Finding the Fourth Proportional to 393,926.26, 543,624.69 and 215,078.26
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Solution
The fourth proportional to 393,926.26, 543,624.69 and 215,078.26 is: 296,811.52
Step by Step Solution
- Step 1: Write the proportion equation
393,926.26 : 543,624.69 = 215,078.26 : x - Step 2: Convert to fraction form
393,926.26/543,624.69 = 215,078.26/x - Step 3: Cross multiply
393,926.26x = 543,624.69 × 215,078.26 - Step 4: Simplify right side
393,926.26x = 116,921,852,418.24 - Step 5: Solve for x
x = 116,921,852,418.24/393,926.26 - Step 6: Final answer
x = 296,811.52
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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.