Finding the Fourth Proportional to 209,126.99, 288,597.01 and 113,633.70
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Solution
The fourth proportional to 209,126.99, 288,597.01 and 113,633.70 is: 156,815.46
Step by Step Solution
- Step 1: Write the proportion equation
209,126.99 : 288,597.01 = 113,633.70 : x - Step 2: Convert to fraction form
209,126.99/288,597.01 = 113,633.70/x - Step 3: Cross multiply
209,126.99x = 288,597.01 × 113,633.70 - Step 4: Simplify right side
209,126.99x = 32,794,344,901.98 - Step 5: Solve for x
x = 32,794,344,901.98/209,126.99 - Step 6: Final answer
x = 156,815.46
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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.