Finding the Fourth Proportional to 213,473.80, 320,205.18 and 69,378.81
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Solution
The fourth proportional to 213,473.80, 320,205.18 and 69,378.81 is: 104,066.42
Step by Step Solution
- Step 1: Write the proportion equation
213,473.80 : 320,205.18 = 69,378.81 : x - Step 2: Convert to fraction form
213,473.80/320,205.18 = 69,378.81/x - Step 3: Cross multiply
213,473.80x = 320,205.18 × 69,378.81 - Step 4: Simplify right side
213,473.80x = 22,215,454,344.24 - Step 5: Solve for x
x = 22,215,454,344.24/213,473.80 - Step 6: Final answer
x = 104,066.42
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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.