Finding the Fourth Proportional to 289,743.60, 434,615.40 and 201,170.10
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Solution
The fourth proportional to 289,743.60, 434,615.40 and 201,170.10 is: 301,755.15
Step by Step Solution
- Step 1: Write the proportion equation
289,743.60 : 434,615.40 = 201,170.10 : x - Step 2: Convert to fraction form
289,743.60/434,615.40 = 201,170.10/x - Step 3: Cross multiply
289,743.60x = 434,615.40 × 201,170.10 - Step 4: Simplify right side
289,743.60x = 87,431,623,479.54 - Step 5: Solve for x
x = 87,431,623,479.54/289,743.60 - Step 6: Final answer
x = 301,755.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.