Finding the Fourth Proportional to 236,961.72, 327,015.12 and 129,529.44
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Solution
The fourth proportional to 236,961.72, 327,015.12 and 129,529.44 is: 178,754.97
Step by Step Solution
- Step 1: Write the proportion equation
236,961.72 : 327,015.12 = 129,529.44 : x - Step 2: Convert to fraction form
236,961.72/327,015.12 = 129,529.44/x - Step 3: Cross multiply
236,961.72x = 327,015.12 × 129,529.44 - Step 4: Simplify right side
236,961.72x = 42,358,085,365.13 - Step 5: Solve for x
x = 42,358,085,365.13/236,961.72 - Step 6: Final answer
x = 178,754.97
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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.