Finding the Fourth Proportional to 202,000.87, 278,757.79 and 110,121.15
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Solution
The fourth proportional to 202,000.87, 278,757.79 and 110,121.15 is: 151,965.33
Step by Step Solution
- Step 1: Write the proportion equation
202,000.87 : 278,757.79 = 110,121.15 : x - Step 2: Convert to fraction form
202,000.87/278,757.79 = 110,121.15/x - Step 3: Cross multiply
202,000.87x = 278,757.79 × 110,121.15 - Step 4: Simplify right side
202,000.87x = 30,697,129,176.30 - Step 5: Solve for x
x = 30,697,129,176.30/202,000.87 - Step 6: Final answer
x = 151,965.33
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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.