Finding the Fourth Proportional to 187,198.68, 280,847.28 and 67,267.74
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Solution
The fourth proportional to 187,198.68, 280,847.28 and 67,267.74 is: 100,919.31
Step by Step Solution
- Step 1: Write the proportion equation
187,198.68 : 280,847.28 = 67,267.74 : x - Step 2: Convert to fraction form
187,198.68/280,847.28 = 67,267.74/x - Step 3: Cross multiply
187,198.68x = 280,847.28 × 67,267.74 - Step 4: Simplify right side
187,198.68x = 18,891,961,810.75 - Step 5: Solve for x
x = 18,891,961,810.75/187,198.68 - Step 6: Final answer
x = 100,919.31
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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.