Finding the Fourth Proportional to 215,063.68, 322,687.68 and 74,745.76
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Solution
The fourth proportional to 215,063.68, 322,687.68 and 74,745.76 is: 112,150.67
Step by Step Solution
- Step 1: Write the proportion equation
215,063.68 : 322,687.68 = 74,745.76 : x - Step 2: Convert to fraction form
215,063.68/322,687.68 = 74,745.76/x - Step 3: Cross multiply
215,063.68x = 322,687.68 × 74,745.76 - Step 4: Simplify right side
215,063.68x = 24,119,535,884.24 - Step 5: Solve for x
x = 24,119,535,884.24/215,063.68 - Step 6: Final answer
x = 112,150.67
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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.