Finding the Fourth Proportional to 208,122.14, 312,232.41 and 67,880.75
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Solution
The fourth proportional to 208,122.14, 312,232.41 and 67,880.75 is: 101,837.17
Step by Step Solution
- Step 1: Write the proportion equation
208,122.14 : 312,232.41 = 67,880.75 : x - Step 2: Convert to fraction form
208,122.14/312,232.41 = 67,880.75/x - Step 3: Cross multiply
208,122.14x = 312,232.41 × 67,880.75 - Step 4: Simplify right side
208,122.14x = 21,194,570,165.11 - Step 5: Solve for x
x = 21,194,570,165.11/208,122.14 - Step 6: Final answer
x = 101,837.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.