Finding the Fourth Proportional to 207,815.93, 311,756.70 and 67,541.75
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Solution
The fourth proportional to 207,815.93, 311,756.70 and 67,541.75 is: 101,323.29
Step by Step Solution
- Step 1: Write the proportion equation
207,815.93 : 311,756.70 = 67,541.75 : x - Step 2: Convert to fraction form
207,815.93/311,756.70 = 67,541.75/x - Step 3: Cross multiply
207,815.93x = 311,756.70 × 67,541.75 - Step 4: Simplify right side
207,815.93x = 21,056,593,092.23 - Step 5: Solve for x
x = 21,056,593,092.23/207,815.93 - Step 6: Final answer
x = 101,323.29
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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.