Finding the Fourth Proportional to 209,120.38, 288,587.88 and 113,627.07
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Solution
The fourth proportional to 209,120.38, 288,587.88 and 113,627.07 is: 156,806.31
Step by Step Solution
- Step 1: Write the proportion equation
209,120.38 : 288,587.88 = 113,627.07 : x - Step 2: Convert to fraction form
209,120.38/288,587.88 = 113,627.07/x - Step 3: Cross multiply
209,120.38x = 288,587.88 × 113,627.07 - Step 4: Simplify right side
209,120.38x = 32,791,395,241.91 - Step 5: Solve for x
x = 32,791,395,241.91/209,120.38 - Step 6: Final answer
x = 156,806.31
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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.