Finding the Fourth Proportional to 289,203.12, 433,239.68 and 199,229.94
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Solution
The fourth proportional to 289,203.12, 433,239.68 and 199,229.94 is: 298,455.69
Step by Step Solution
- Step 1: Write the proportion equation
289,203.12 : 433,239.68 = 199,229.94 : x - Step 2: Convert to fraction form
289,203.12/433,239.68 = 199,229.94/x - Step 3: Cross multiply
289,203.12x = 433,239.68 × 199,229.94 - Step 4: Simplify right side
289,203.12x = 86,314,315,452.02 - Step 5: Solve for x
x = 86,314,315,452.02/289,203.12 - Step 6: Final answer
x = 298,455.69
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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.