Finding the Fourth Proportional to 396,276.38, 546,861.34 and 226,514.15
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Solution
The fourth proportional to 396,276.38, 546,861.34 and 226,514.15 is: 312,589.49
Step by Step Solution
- Step 1: Write the proportion equation
396,276.38 : 546,861.34 = 226,514.15 : x - Step 2: Convert to fraction form
396,276.38/546,861.34 = 226,514.15/x - Step 3: Cross multiply
396,276.38x = 546,861.34 × 226,514.15 - Step 4: Simplify right side
396,276.38x = 123,871,831,597.96 - Step 5: Solve for x
x = 123,871,831,597.96/396,276.38 - Step 6: Final answer
x = 312,589.49
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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.