Finding the Fourth Proportional to 201,934.88, 278,660.16 and 117,079.52
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Solution
The fourth proportional to 201,934.88, 278,660.16 and 117,079.52 is: 161,563.95
Step by Step Solution
- Step 1: Write the proportion equation
201,934.88 : 278,660.16 = 117,079.52 : x - Step 2: Convert to fraction form
201,934.88/278,660.16 = 117,079.52/x - Step 3: Cross multiply
201,934.88x = 278,660.16 × 117,079.52 - Step 4: Simplify right side
201,934.88x = 32,625,397,775.92 - Step 5: Solve for x
x = 32,625,397,775.92/201,934.88 - Step 6: Final answer
x = 161,563.95
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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.