Finding the Fourth Proportional to 208,850.80, 313,276.20 and 145,865.20
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Solution
The fourth proportional to 208,850.80, 313,276.20 and 145,865.20 is: 218,797.80
Step by Step Solution
- Step 1: Write the proportion equation
208,850.80 : 313,276.20 = 145,865.20 : x - Step 2: Convert to fraction form
208,850.80/313,276.20 = 145,865.20/x - Step 3: Cross multiply
208,850.80x = 313,276.20 × 145,865.20 - Step 4: Simplify right side
208,850.80x = 45,696,095,568.24 - Step 5: Solve for x
x = 45,696,095,568.24/208,850.80 - Step 6: Final answer
x = 218,797.80
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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.