Finding the Fourth Proportional to 203,980.19, 281,491.76 and 113,350.91
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Solution
The fourth proportional to 203,980.19, 281,491.76 and 113,350.91 is: 156,423.75
Step by Step Solution
- Step 1: Write the proportion equation
203,980.19 : 281,491.76 = 113,350.91 : x - Step 2: Convert to fraction form
203,980.19/281,491.76 = 113,350.91/x - Step 3: Cross multiply
203,980.19x = 281,491.76 × 113,350.91 - Step 4: Simplify right side
203,980.19x = 31,907,346,586.75 - Step 5: Solve for x
x = 31,907,346,586.75/203,980.19 - Step 6: Final answer
x = 156,423.75
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1.5x scale
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.