Finding the Fourth Proportional to 203,857.68, 305,789.76 and 77,499.84
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Solution
The fourth proportional to 203,857.68, 305,789.76 and 77,499.84 is: 116,250.99
Step by Step Solution
- Step 1: Write the proportion equation
203,857.68 : 305,789.76 = 77,499.84 : x - Step 2: Convert to fraction form
203,857.68/305,789.76 = 77,499.84/x - Step 3: Cross multiply
203,857.68x = 305,789.76 × 77,499.84 - Step 4: Simplify right side
203,857.68x = 23,698,657,473.64 - Step 5: Solve for x
x = 23,698,657,473.64/203,857.68 - Step 6: Final answer
x = 116,250.99
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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.