Finding the Fourth Proportional to 208,847.15, 288,201.35 and 113,351.79
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Solution
The fourth proportional to 208,847.15, 288,201.35 and 113,351.79 is: 156,421.28
Step by Step Solution
- Step 1: Write the proportion equation
208,847.15 : 288,201.35 = 113,351.79 : x - Step 2: Convert to fraction form
208,847.15/288,201.35 = 113,351.79/x - Step 3: Cross multiply
208,847.15x = 288,201.35 × 113,351.79 - Step 4: Simplify right side
208,847.15x = 32,668,138,902.92 - Step 5: Solve for x
x = 32,668,138,902.92/208,847.15 - Step 6: Final answer
x = 156,421.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.