Finding the Fourth Proportional to 354,713.85, 489,519.81 and 201,778.97
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Solution
The fourth proportional to 354,713.85, 489,519.81 and 201,778.97 is: 278,463.33
Step by Step Solution
- Step 1: Write the proportion equation
354,713.85 : 489,519.81 = 201,778.97 : x - Step 2: Convert to fraction form
354,713.85/489,519.81 = 201,778.97/x - Step 3: Cross multiply
354,713.85x = 489,519.81 × 201,778.97 - Step 4: Simplify right side
354,713.85x = 98,774,800,608.80 - Step 5: Solve for x
x = 98,774,800,608.80/354,713.85 - Step 6: Final answer
x = 278,463.33
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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.