Finding the Fourth Proportional to 396,674.06, 547,275.02 and 253,516.68
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Solution
The fourth proportional to 396,674.06, 547,275.02 and 253,516.68 is: 349,766.62
Step by Step Solution
- Step 1: Write the proportion equation
396,674.06 : 547,275.02 = 253,516.68 : x - Step 2: Convert to fraction form
396,674.06/547,275.02 = 253,516.68/x - Step 3: Cross multiply
396,674.06x = 547,275.02 × 253,516.68 - Step 4: Simplify right side
396,674.06x = 138,743,344,849.75 - Step 5: Solve for x
x = 138,743,344,849.75/396,674.06 - Step 6: Final answer
x = 349,766.62
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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.