Finding the Fourth Proportional to 396,442.13, 547,544.21 and 261,081.14
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Solution
The fourth proportional to 396,442.13, 547,544.21 and 261,081.14 is: 360,591.00
Step by Step Solution
- Step 1: Write the proportion equation
396,442.13 : 547,544.21 = 261,081.14 : x - Step 2: Convert to fraction form
396,442.13/547,544.21 = 261,081.14/x - Step 3: Cross multiply
396,442.13x = 547,544.21 × 261,081.14 - Step 4: Simplify right side
396,442.13x = 142,953,462,504.07 - Step 5: Solve for x
x = 142,953,462,504.07/396,442.13 - Step 6: Final answer
x = 360,591.00
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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.