Finding the Fourth Proportional to 396,718.27, 547,316.35 and 226,861.63
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Solution
The fourth proportional to 396,718.27, 547,316.35 and 226,861.63 is: 312,980.49
Step by Step Solution
- Step 1: Write the proportion equation
396,718.27 : 547,316.35 = 226,861.63 : x - Step 2: Convert to fraction form
396,718.27/547,316.35 = 226,861.63/x - Step 3: Cross multiply
396,718.27x = 547,316.35 × 226,861.63 - Step 4: Simplify right side
396,718.27x = 124,165,079,286.65 - Step 5: Solve for x
x = 124,165,079,286.65/396,718.27 - Step 6: Final answer
x = 312,980.49
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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.