Finding the Fourth Proportional to 303,759.40, 455,201.70 and 135,141.70
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Solution
The fourth proportional to 303,759.40, 455,201.70 and 135,141.70 is: 202,517.95
Step by Step Solution
- Step 1: Write the proportion equation
303,759.40 : 455,201.70 = 135,141.70 : x - Step 2: Convert to fraction form
303,759.40/455,201.70 = 135,141.70/x - Step 3: Cross multiply
303,759.40x = 455,201.70 × 135,141.70 - Step 4: Simplify right side
303,759.40x = 61,516,731,580.89 - Step 5: Solve for x
x = 61,516,731,580.89/303,759.40 - Step 6: Final answer
x = 202,517.95
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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.