Finding the Fourth Proportional to 209,175.42, 288,663.99 and 113,682.36
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Solution
The fourth proportional to 209,175.42, 288,663.99 and 113,682.36 is: 156,882.70
Step by Step Solution
- Step 1: Write the proportion equation
209,175.42 : 288,663.99 = 113,682.36 : x - Step 2: Convert to fraction form
209,175.42/288,663.99 = 113,682.36/x - Step 3: Cross multiply
209,175.42x = 288,663.99 × 113,682.36 - Step 4: Simplify right side
209,175.42x = 32,816,003,630.22 - Step 5: Solve for x
x = 32,816,003,630.22/209,175.42 - Step 6: Final answer
x = 156,882.70
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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.