Finding the Fourth Proportional to 203,985.28, 281,409.12 and 135,935.97
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Solution
The fourth proportional to 203,985.28, 281,409.12 and 135,935.97 is: 187,531.29
Step by Step Solution
- Step 1: Write the proportion equation
203,985.28 : 281,409.12 = 135,935.97 : x - Step 2: Convert to fraction form
203,985.28/281,409.12 = 135,935.97/x - Step 3: Cross multiply
203,985.28x = 281,409.12 × 135,935.97 - Step 4: Simplify right side
203,985.28x = 38,253,621,694.05 - Step 5: Solve for x
x = 38,253,621,694.05/203,985.28 - Step 6: Final answer
x = 187,531.29
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1.5x scale
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.