Finding the Fourth Proportional to 226,749.74, 312,917.52 and 124,786.94
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Solution
The fourth proportional to 226,749.74, 312,917.52 and 124,786.94 is: 172,207.56
Step by Step Solution
- Step 1: Write the proportion equation
226,749.74 : 312,917.52 = 124,786.94 : x - Step 2: Convert to fraction form
226,749.74/312,917.52 = 124,786.94/x - Step 3: Cross multiply
226,749.74x = 312,917.52 × 124,786.94 - Step 4: Simplify right side
226,749.74x = 39,048,019,793.19 - Step 5: Solve for x
x = 39,048,019,793.19/226,749.74 - Step 6: Final answer
x = 172,207.56
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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.