Finding the Fourth Proportional to 204,171.22, 305,944.98 and 85,777.84
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Solution
The fourth proportional to 204,171.22, 305,944.98 and 85,777.84 is: 128,535.74
Step by Step Solution
- Step 1: Write the proportion equation
204,171.22 : 305,944.98 = 85,777.84 : x - Step 2: Convert to fraction form
204,171.22/305,944.98 = 85,777.84/x - Step 3: Cross multiply
204,171.22x = 305,944.98 × 85,777.84 - Step 4: Simplify right side
204,171.22x = 26,243,299,543.24 - Step 5: Solve for x
x = 26,243,299,543.24/204,171.22 - Step 6: Final answer
x = 128,535.74
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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.