Finding the Fourth Proportional to 203,490.32, 305,193.92 and 77,086.99
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Solution
The fourth proportional to 203,490.32, 305,193.92 and 77,086.99 is: 115,614.74
Step by Step Solution
- Step 1: Write the proportion equation
203,490.32 : 305,193.92 = 77,086.99 : x - Step 2: Convert to fraction form
203,490.32/305,193.92 = 77,086.99/x - Step 3: Cross multiply
203,490.32x = 305,193.92 × 77,086.99 - Step 4: Simplify right side
203,490.32x = 23,526,480,659.10 - Step 5: Solve for x
x = 23,526,480,659.10/203,490.32 - Step 6: Final answer
x = 115,614.74
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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.