Finding the Fourth Proportional to 318,193.92, 439,174.38 and 201,832.14
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Solution
The fourth proportional to 318,193.92, 439,174.38 and 201,832.14 is: 278,570.71
Step by Step Solution
- Step 1: Write the proportion equation
318,193.92 : 439,174.38 = 201,832.14 : x - Step 2: Convert to fraction form
318,193.92/439,174.38 = 201,832.14/x - Step 3: Cross multiply
318,193.92x = 439,174.38 × 201,832.14 - Step 4: Simplify right side
318,193.92x = 88,639,504,948.57 - Step 5: Solve for x
x = 88,639,504,948.57/318,193.92 - Step 6: Final answer
x = 278,570.71
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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.