Finding the Fourth Proportional to 208,840.14, 288,199.66 and 113,346.84
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Solution
The fourth proportional to 208,840.14, 288,199.66 and 113,346.84 is: 156,418.78
Step by Step Solution
- Step 1: Write the proportion equation
208,840.14 : 288,199.66 = 113,346.84 : x - Step 2: Convert to fraction form
208,840.14/288,199.66 = 113,346.84/x - Step 3: Cross multiply
208,840.14x = 288,199.66 × 113,346.84 - Step 4: Simplify right side
208,840.14x = 32,666,520,750.07 - Step 5: Solve for x
x = 32,666,520,750.07/208,840.14 - Step 6: Final answer
x = 156,418.78
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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.