Finding the Fourth Proportional to 203,857.40, 305,786.10 and 124,023.80
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Solution
The fourth proportional to 203,857.40, 305,786.10 and 124,023.80 is: 186,035.70
Step by Step Solution
- Step 1: Write the proportion equation
203,857.40 : 305,786.10 = 124,023.80 : x - Step 2: Convert to fraction form
203,857.40/305,786.10 = 124,023.80/x - Step 3: Cross multiply
203,857.40x = 305,786.10 × 124,023.80 - Step 4: Simplify right side
203,857.40x = 37,924,754,109.18 - Step 5: Solve for x
x = 37,924,754,109.18/203,857.40 - Step 6: Final answer
x = 186,035.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.