Finding the Fourth Proportional to 209,127.99, 288,598.39 and 113,634.70
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Solution
The fourth proportional to 209,127.99, 288,598.39 and 113,634.70 is: 156,816.84
Step by Step Solution
- Step 1: Write the proportion equation
209,127.99 : 288,598.39 = 113,634.70 : x - Step 2: Convert to fraction form
209,127.99/288,598.39 = 113,634.70/x - Step 3: Cross multiply
209,127.99x = 288,598.39 × 113,634.70 - Step 4: Simplify right side
209,127.99x = 32,794,791,468.13 - Step 5: Solve for x
x = 32,794,791,468.13/209,127.99 - Step 6: Final answer
x = 156,816.84
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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.