Finding the Fourth Proportional to 207,391.12, 310,926.84 and 67,112.08
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Solution
The fourth proportional to 207,391.12, 310,926.84 and 67,112.08 is: 100,616.40
Step by Step Solution
- Step 1: Write the proportion equation
207,391.12 : 310,926.84 = 67,112.08 : x - Step 2: Convert to fraction form
207,391.12/310,926.84 = 67,112.08/x - Step 3: Cross multiply
207,391.12x = 310,926.84 × 67,112.08 - Step 4: Simplify right side
207,391.12x = 20,866,946,960.23 - Step 5: Solve for x
x = 20,866,946,960.23/207,391.12 - Step 6: Final answer
x = 100,616.40
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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.