Finding the Third Proportional to 255,151.75 and 398,239.75
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Solution
The third proportional to 255,151.75 and 398,239.75 is: 621,570.88
Step by Step Solution
- Step 1: Write the proportion equation
255,151.75 : 398,239.75 = 398,239.75 : x - Step 2: Convert to fraction form
255,151.75/398,239.75 = 398,239.75/x - Step 3: Cross multiply
255,151.75x = 398,239.75 × 398,239.75 - Step 4: Simplify right side
255,151.75x = 158,594,898,480.06 - Step 5: Solve for x
x = 158,594,898,480.06/255,151.75 - Step 6: Final answer
x = 621,570.88
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.