Finding the Fourth Proportional to 281,588.14, 422,378.36 and 68,357.69
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Solution
The fourth proportional to 281,588.14, 422,378.36 and 68,357.69 is: 102,535.60
Step by Step Solution
- Step 1: Write the proportion equation
281,588.14 : 422,378.36 = 68,357.69 : x - Step 2: Convert to fraction form
281,588.14/422,378.36 = 68,357.69/x - Step 3: Cross multiply
281,588.14x = 422,378.36 × 68,357.69 - Step 4: Simplify right side
281,588.14x = 28,872,808,382.17 - Step 5: Solve for x
x = 28,872,808,382.17/281,588.14 - Step 6: Final answer
x = 102,535.60
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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.