Finding the Fourth Proportional to 203,424.75, 305,137.17 and 78,765.75
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Solution
The fourth proportional to 203,424.75, 305,137.17 and 78,765.75 is: 118,148.64
Step by Step Solution
- Step 1: Write the proportion equation
203,424.75 : 305,137.17 = 78,765.75 : x - Step 2: Convert to fraction form
203,424.75/305,137.17 = 78,765.75/x - Step 3: Cross multiply
203,424.75x = 305,137.17 × 78,765.75 - Step 4: Simplify right side
203,424.75x = 24,034,358,047.93 - Step 5: Solve for x
x = 24,034,358,047.93/203,424.75 - Step 6: Final answer
x = 118,148.64
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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.