Finding the Fourth Proportional to 191,996.70, 287,761.46 and 135,852.99
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Solution
The fourth proportional to 191,996.70, 287,761.46 and 135,852.99 is: 203,614.20
Step by Step Solution
- Step 1: Write the proportion equation
191,996.70 : 287,761.46 = 135,852.99 : x - Step 2: Convert to fraction form
191,996.70/287,761.46 = 135,852.99/x - Step 3: Cross multiply
191,996.70x = 287,761.46 × 135,852.99 - Step 4: Simplify right side
191,996.70x = 39,093,254,068.50 - Step 5: Solve for x
x = 39,093,254,068.50/191,996.70 - Step 6: Final answer
x = 203,614.20
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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.