Finding the Fourth Proportional to 209,451.80, 289,034.84 and 113,958.87
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Solution
The fourth proportional to 209,451.80, 289,034.84 and 113,958.87 is: 157,258.54
Step by Step Solution
- Step 1: Write the proportion equation
209,451.80 : 289,034.84 = 113,958.87 : x - Step 2: Convert to fraction form
209,451.80/289,034.84 = 113,958.87/x - Step 3: Cross multiply
209,451.80x = 289,034.84 × 113,958.87 - Step 4: Simplify right side
209,451.80x = 32,938,084,041.93 - Step 5: Solve for x
x = 32,938,084,041.93/209,451.80 - Step 6: Final answer
x = 157,258.54
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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.