Finding the Fourth Proportional to 207,036.15, 285,674.90 and 116,380.05
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Solution
The fourth proportional to 207,036.15, 285,674.90 and 116,380.05 is: 160,584.80
Step by Step Solution
- Step 1: Write the proportion equation
207,036.15 : 285,674.90 = 116,380.05 : x - Step 2: Convert to fraction form
207,036.15/285,674.90 = 116,380.05/x - Step 3: Cross multiply
207,036.15x = 285,674.90 × 116,380.05 - Step 4: Simplify right side
207,036.15x = 33,246,859,145.75 - Step 5: Solve for x
x = 33,246,859,145.75/207,036.15 - Step 6: Final answer
x = 160,584.80
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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.