Finding the Fourth Proportional to 229,717.68, 344,368.92 and 81,939.12
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Solution
The fourth proportional to 229,717.68, 344,368.92 and 81,939.12 is: 122,834.63
Step by Step Solution
- Step 1: Write the proportion equation
229,717.68 : 344,368.92 = 81,939.12 : x - Step 2: Convert to fraction form
229,717.68/344,368.92 = 81,939.12/x - Step 3: Cross multiply
229,717.68x = 344,368.92 × 81,939.12 - Step 4: Simplify right side
229,717.68x = 28,217,286,260.15 - Step 5: Solve for x
x = 28,217,286,260.15/229,717.68 - Step 6: Final answer
x = 122,834.63
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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.