Finding the Fourth Proportional to 207,301.25, 310,939.51 and 121,960.06
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Solution
The fourth proportional to 207,301.25, 310,939.51 and 121,960.06 is: 182,932.82
Step by Step Solution
- Step 1: Write the proportion equation
207,301.25 : 310,939.51 = 121,960.06 : x - Step 2: Convert to fraction form
207,301.25/310,939.51 = 121,960.06/x - Step 3: Cross multiply
207,301.25x = 310,939.51 × 121,960.06 - Step 4: Simplify right side
207,301.25x = 37,922,201,295.97 - Step 5: Solve for x
x = 37,922,201,295.97/207,301.25 - Step 6: Final answer
x = 182,932.82
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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.