Finding the Fourth Proportional to 209,090.36, 288,546.08 and 113,597.03
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Solution
The fourth proportional to 209,090.36, 288,546.08 and 113,597.03 is: 156,764.65
Step by Step Solution
- Step 1: Write the proportion equation
209,090.36 : 288,546.08 = 113,597.03 : x - Step 2: Convert to fraction form
209,090.36/288,546.08 = 113,597.03/x - Step 3: Cross multiply
209,090.36x = 288,546.08 × 113,597.03 - Step 4: Simplify right side
209,090.36x = 32,777,977,706.14 - Step 5: Solve for x
x = 32,777,977,706.14/209,090.36 - Step 6: Final answer
x = 156,764.65
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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.