Finding the Fourth Proportional to 200,074.91, 299,779.11 and 140,785.99
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Solution
The fourth proportional to 200,074.91, 299,779.11 and 140,785.99 is: 210,944.49
Step by Step Solution
- Step 1: Write the proportion equation
200,074.91 : 299,779.11 = 140,785.99 : x - Step 2: Convert to fraction form
200,074.91/299,779.11 = 140,785.99/x - Step 3: Cross multiply
200,074.91x = 299,779.11 × 140,785.99 - Step 4: Simplify right side
200,074.91x = 42,204,698,033.22 - Step 5: Solve for x
x = 42,204,698,033.22/200,074.91 - Step 6: Final answer
x = 210,944.49
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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.