Finding the Fourth Proportional to 207,574.20, 311,326.98 and 74,434.20
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Solution
The fourth proportional to 207,574.20, 311,326.98 and 74,434.20 is: 111,638.99
Step by Step Solution
- Step 1: Write the proportion equation
207,574.20 : 311,326.98 = 74,434.20 : x - Step 2: Convert to fraction form
207,574.20/311,326.98 = 74,434.20/x - Step 3: Cross multiply
207,574.20x = 311,326.98 × 74,434.20 - Step 4: Simplify right side
207,574.20x = 23,173,374,694.72 - Step 5: Solve for x
x = 23,173,374,694.72/207,574.20 - Step 6: Final answer
x = 111,638.99
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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.