Finding the Fourth Proportional to 208,965.48, 288,364.38 and 113,470.08
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Solution
The fourth proportional to 208,965.48, 288,364.38 and 113,470.08 is: 156,584.38
Step by Step Solution
- Step 1: Write the proportion equation
208,965.48 : 288,364.38 = 113,470.08 : x - Step 2: Convert to fraction form
208,965.48/288,364.38 = 113,470.08/x - Step 3: Cross multiply
208,965.48x = 288,364.38 × 113,470.08 - Step 4: Simplify right side
208,965.48x = 32,720,729,267.75 - Step 5: Solve for x
x = 32,720,729,267.75/208,965.48 - Step 6: Final answer
x = 156,584.38
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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.