Finding the Fourth Proportional to 149,279.94, 205,996.96 and 82,211.94
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Solution
The fourth proportional to 149,279.94, 205,996.96 and 82,211.94 is: 113,447.32
Step by Step Solution
- Step 1: Write the proportion equation
149,279.94 : 205,996.96 = 82,211.94 : x - Step 2: Convert to fraction form
149,279.94/205,996.96 = 82,211.94/x - Step 3: Cross multiply
149,279.94x = 205,996.96 × 82,211.94 - Step 4: Simplify right side
149,279.94x = 16,935,409,715.70 - Step 5: Solve for x
x = 16,935,409,715.70/149,279.94 - Step 6: Final answer
x = 113,447.32
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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.