Finding the Fourth Proportional to 207,287.38, 310,734.24 and 81,008.63
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Solution
The fourth proportional to 207,287.38, 310,734.24 and 81,008.63 is: 121,436.02
Step by Step Solution
- Step 1: Write the proportion equation
207,287.38 : 310,734.24 = 81,008.63 : x - Step 2: Convert to fraction form
207,287.38/310,734.24 = 81,008.63/x - Step 3: Cross multiply
207,287.38x = 310,734.24 × 81,008.63 - Step 4: Simplify right side
207,287.38x = 25,172,155,076.49 - Step 5: Solve for x
x = 25,172,155,076.49/207,287.38 - Step 6: Final answer
x = 121,436.02
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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.