Finding the Fourth Proportional to 203,518.68, 280,869.94 and 112,882.92
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Solution
The fourth proportional to 203,518.68, 280,869.94 and 112,882.92 is: 155,786.28
Step by Step Solution
- Step 1: Write the proportion equation
203,518.68 : 280,869.94 = 112,882.92 : x - Step 2: Convert to fraction form
203,518.68/280,869.94 = 112,882.92/x - Step 3: Cross multiply
203,518.68x = 280,869.94 × 112,882.92 - Step 4: Simplify right side
203,518.68x = 31,705,418,967.42 - Step 5: Solve for x
x = 31,705,418,967.42/203,518.68 - Step 6: Final answer
x = 155,786.28
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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.