Finding the Fourth Proportional to 208,926.42, 288,310.59 and 113,431.08
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Solution
The fourth proportional to 208,926.42, 288,310.59 and 113,431.08 is: 156,530.62
Step by Step Solution
- Step 1: Write the proportion equation
208,926.42 : 288,310.59 = 113,431.08 : x - Step 2: Convert to fraction form
208,926.42/288,310.59 = 113,431.08/x - Step 3: Cross multiply
208,926.42x = 288,310.59 × 113,431.08 - Step 4: Simplify right side
208,926.42x = 32,703,381,599.14 - Step 5: Solve for x
x = 32,703,381,599.14/208,926.42 - Step 6: Final answer
x = 156,530.62
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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.