Finding the Fourth Proportional to 203,470.59, 305,143.49 and 140,694.09
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Solution
The fourth proportional to 203,470.59, 305,143.49 and 140,694.09 is: 210,997.99
Step by Step Solution
- Step 1: Write the proportion equation
203,470.59 : 305,143.49 = 140,694.09 : x - Step 2: Convert to fraction form
203,470.59/305,143.49 = 140,694.09/x - Step 3: Cross multiply
203,470.59x = 305,143.49 × 140,694.09 - Step 4: Simplify right side
203,470.59x = 42,931,884,941.50 - Step 5: Solve for x
x = 42,931,884,941.50/203,470.59 - Step 6: Final answer
x = 210,997.99
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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.