Finding the Fourth Proportional to 203,775.52, 305,564.97 and 85,415.08
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Solution
The fourth proportional to 203,775.52, 305,564.97 and 85,415.08 is: 128,081.41
Step by Step Solution
- Step 1: Write the proportion equation
203,775.52 : 305,564.97 = 85,415.08 : x - Step 2: Convert to fraction form
203,775.52/305,564.97 = 85,415.08/x - Step 3: Cross multiply
203,775.52x = 305,564.97 × 85,415.08 - Step 4: Simplify right side
203,775.52x = 26,099,856,357.75 - Step 5: Solve for x
x = 26,099,856,357.75/203,775.52 - Step 6: Final answer
x = 128,081.41
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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.