Finding the Fourth Proportional to 203,428.35, 280,733.68 and 117,405.20
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Solution
The fourth proportional to 203,428.35, 280,733.68 and 117,405.20 is: 162,020.65
Step by Step Solution
- Step 1: Write the proportion equation
203,428.35 : 280,733.68 = 117,405.20 : x - Step 2: Convert to fraction form
203,428.35/280,733.68 = 117,405.20/x - Step 3: Cross multiply
203,428.35x = 280,733.68 × 117,405.20 - Step 4: Simplify right side
203,428.35x = 32,959,593,847.14 - Step 5: Solve for x
x = 32,959,593,847.14/203,428.35 - Step 6: Final answer
x = 162,020.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.