Finding the Fourth Proportional to 396,687.06, 547,801.81 and 276,157.96
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Solution
The fourth proportional to 396,687.06, 547,801.81 and 276,157.96 is: 381,358.12
Step by Step Solution
- Step 1: Write the proportion equation
396,687.06 : 547,801.81 = 276,157.96 : x - Step 2: Convert to fraction form
396,687.06/547,801.81 = 276,157.96/x - Step 3: Cross multiply
396,687.06x = 547,801.81 × 276,157.96 - Step 4: Simplify right side
396,687.06x = 151,279,829,050.70 - Step 5: Solve for x
x = 151,279,829,050.70/396,687.06 - Step 6: Final answer
x = 381,358.12
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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.