Finding the Fourth Proportional to 225,817.75, 311,642.48 and 125,215.75
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Solution
The fourth proportional to 225,817.75, 311,642.48 and 125,215.75 is: 172,805.48
Step by Step Solution
- Step 1: Write the proportion equation
225,817.75 : 311,642.48 = 125,215.75 : x - Step 2: Convert to fraction form
225,817.75/311,642.48 = 125,215.75/x - Step 3: Cross multiply
225,817.75x = 311,642.48 × 125,215.75 - Step 4: Simplify right side
225,817.75x = 39,022,544,680.77 - Step 5: Solve for x
x = 39,022,544,680.77/225,817.75 - Step 6: Final answer
x = 172,805.48
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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.