Finding the Fourth Proportional to 203,943.09, 281,486.48 and 113,330.21
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Solution
The fourth proportional to 203,943.09, 281,486.48 and 113,330.21 is: 156,420.70
Step by Step Solution
- Step 1: Write the proportion equation
203,943.09 : 281,486.48 = 113,330.21 : x - Step 2: Convert to fraction form
203,943.09/281,486.48 = 113,330.21/x - Step 3: Cross multiply
203,943.09x = 281,486.48 × 113,330.21 - Step 4: Simplify right side
203,943.09x = 31,900,921,890.56 - Step 5: Solve for x
x = 31,900,921,890.56/203,943.09 - Step 6: Final answer
x = 156,420.70
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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.