Finding the Fourth Proportional to 201,865.75, 278,574.74 and 112,441.75
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Solution
The fourth proportional to 201,865.75, 278,574.74 and 112,441.75 is: 155,169.62
Step by Step Solution
- Step 1: Write the proportion equation
201,865.75 : 278,574.74 = 112,441.75 : x - Step 2: Convert to fraction form
201,865.75/278,574.74 = 112,441.75/x - Step 3: Cross multiply
201,865.75x = 278,574.74 × 112,441.75 - Step 4: Simplify right side
201,865.75x = 31,323,431,271.40 - Step 5: Solve for x
x = 31,323,431,271.40/201,865.75 - Step 6: Final answer
x = 155,169.62
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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.