Finding the Fourth Proportional to 216,530.30, 324,622.65 and 91,768.70
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Solution
The fourth proportional to 216,530.30, 324,622.65 and 91,768.70 is: 137,579.81
Step by Step Solution
- Step 1: Write the proportion equation
216,530.30 : 324,622.65 = 91,768.70 : x - Step 2: Convert to fraction form
216,530.30/324,622.65 = 91,768.70/x - Step 3: Cross multiply
216,530.30x = 324,622.65 × 91,768.70 - Step 4: Simplify right side
216,530.30x = 29,790,198,581.06 - Step 5: Solve for x
x = 29,790,198,581.06/216,530.30 - Step 6: Final answer
x = 137,579.81
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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.