Finding the Fourth Proportional to 225,451.75, 311,133.20 and 124,849.75
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Solution
The fourth proportional to 225,451.75, 311,133.20 and 124,849.75 is: 172,298.07
Step by Step Solution
- Step 1: Write the proportion equation
225,451.75 : 311,133.20 = 124,849.75 : x - Step 2: Convert to fraction form
225,451.75/311,133.20 = 124,849.75/x - Step 3: Cross multiply
225,451.75x = 311,133.20 × 124,849.75 - Step 4: Simplify right side
225,451.75x = 38,844,902,236.70 - Step 5: Solve for x
x = 38,844,902,236.70/225,451.75 - Step 6: Final answer
x = 172,298.07
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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.