Finding the Fourth Proportional to 207,890.20, 311,867.98 and 67,616.02
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Solution
The fourth proportional to 207,890.20, 311,867.98 and 67,616.02 is: 101,434.66
Step by Step Solution
- Step 1: Write the proportion equation
207,890.20 : 311,867.98 = 67,616.02 : x - Step 2: Convert to fraction form
207,890.20/311,867.98 = 67,616.02/x - Step 3: Cross multiply
207,890.20x = 311,867.98 × 67,616.02 - Step 4: Simplify right side
207,890.20x = 21,087,271,573.04 - Step 5: Solve for x
x = 21,087,271,573.04/207,890.20 - Step 6: Final answer
x = 101,434.66
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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.