Finding the Fourth Proportional to 203,216.99, 280,435.68 and 112,570.97
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Solution
The fourth proportional to 203,216.99, 280,435.68 and 112,570.97 is: 155,345.85
Step by Step Solution
- Step 1: Write the proportion equation
203,216.99 : 280,435.68 = 112,570.97 : x - Step 2: Convert to fraction form
203,216.99/280,435.68 = 112,570.97/x - Step 3: Cross multiply
203,216.99x = 280,435.68 × 112,570.97 - Step 4: Simplify right side
203,216.99x = 31,568,914,801.43 - Step 5: Solve for x
x = 31,568,914,801.43/203,216.99 - Step 6: Final answer
x = 155,345.85
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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.