Finding the Fourth Proportional to 306,367.68, 422,995.68 and 225,804.48
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Solution
The fourth proportional to 306,367.68, 422,995.68 and 225,804.48 is: 311,763.69
Step by Step Solution
- Step 1: Write the proportion equation
306,367.68 : 422,995.68 = 225,804.48 : x - Step 2: Convert to fraction form
306,367.68/422,995.68 = 225,804.48/x - Step 3: Cross multiply
306,367.68x = 422,995.68 × 225,804.48 - Step 4: Simplify right side
306,367.68x = 95,514,319,564.65 - Step 5: Solve for x
x = 95,514,319,564.65/306,367.68 - Step 6: Final answer
x = 311,763.69
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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.