Finding the Fourth Proportional to 208,805.06, 288,151.74 and 113,311.74
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Solution
The fourth proportional to 208,805.06, 288,151.74 and 113,311.74 is: 156,370.61
Step by Step Solution
- Step 1: Write the proportion equation
208,805.06 : 288,151.74 = 113,311.74 : x - Step 2: Convert to fraction form
208,805.06/288,151.74 = 113,311.74/x - Step 3: Cross multiply
208,805.06x = 288,151.74 × 113,311.74 - Step 4: Simplify right side
208,805.06x = 32,650,975,043.43 - Step 5: Solve for x
x = 32,650,975,043.43/208,805.06 - Step 6: Final answer
x = 156,370.61
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1.5x scale
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.