Finding the Fourth Proportional to 264,009.48, 396,007.68 and 77,022.60
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Solution
The fourth proportional to 264,009.48, 396,007.68 and 77,022.60 is: 115,531.99
Step by Step Solution
- Step 1: Write the proportion equation
264,009.48 : 396,007.68 = 77,022.60 : x - Step 2: Convert to fraction form
264,009.48/396,007.68 = 77,022.60/x - Step 3: Cross multiply
264,009.48x = 396,007.68 × 77,022.60 - Step 4: Simplify right side
264,009.48x = 30,501,541,133.57 - Step 5: Solve for x
x = 30,501,541,133.57/264,009.48 - Step 6: Final answer
x = 115,531.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.