Finding the Fourth Proportional to 202,765.07, 279,812.87 and 112,119.05
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Solution
The fourth proportional to 202,765.07, 279,812.87 and 112,119.05 is: 154,722.66
Step by Step Solution
- Step 1: Write the proportion equation
202,765.07 : 279,812.87 = 112,119.05 : x - Step 2: Convert to fraction form
202,765.07/279,812.87 = 112,119.05/x - Step 3: Cross multiply
202,765.07x = 279,812.87 × 112,119.05 - Step 4: Simplify right side
202,765.07x = 31,372,351,202.51 - Step 5: Solve for x
x = 31,372,351,202.51/202,765.07 - Step 6: Final answer
x = 154,722.66
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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.