Finding the Fourth Proportional to 203,645.13, 281,036.70 and 113,007.75
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Solution
The fourth proportional to 203,645.13, 281,036.70 and 113,007.75 is: 155,954.26
Step by Step Solution
- Step 1: Write the proportion equation
203,645.13 : 281,036.70 = 113,007.75 : x - Step 2: Convert to fraction form
203,645.13/281,036.70 = 113,007.75/x - Step 3: Cross multiply
203,645.13x = 281,036.70 × 113,007.75 - Step 4: Simplify right side
203,645.13x = 31,759,325,134.43 - Step 5: Solve for x
x = 31,759,325,134.43/203,645.13 - Step 6: Final answer
x = 155,954.26
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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.