Finding the Fourth Proportional to 243,404.22, 335,873.67 and 135,971.94
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Solution
The fourth proportional to 243,404.22, 335,873.67 and 135,971.94 is: 187,627.78
Step by Step Solution
- Step 1: Write the proportion equation
243,404.22 : 335,873.67 = 135,971.94 : x - Step 2: Convert to fraction form
243,404.22/335,873.67 = 135,971.94/x - Step 3: Cross multiply
243,404.22x = 335,873.67 × 135,971.94 - Step 4: Simplify right side
243,404.22x = 45,669,394,504.82 - Step 5: Solve for x
x = 45,669,394,504.82/243,404.22 - Step 6: Final answer
x = 187,627.78
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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.