Finding the Fourth Proportional to 201,771.97, 278,378.67 and 130,199.56
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Solution
The fourth proportional to 201,771.97, 278,378.67 and 130,199.56 is: 179,632.39
Step by Step Solution
- Step 1: Write the proportion equation
201,771.97 : 278,378.67 = 130,199.56 : x - Step 2: Convert to fraction form
201,771.97/278,378.67 = 130,199.56/x - Step 3: Cross multiply
201,771.97x = 278,378.67 × 130,199.56 - Step 4: Simplify right side
201,771.97x = 36,244,780,347.39 - Step 5: Solve for x
x = 36,244,780,347.39/201,771.97 - Step 6: Final answer
x = 179,632.39
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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.