Finding the Fourth Proportional to 291,491.12, 437,236.78 and 225,028.28
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Solution
The fourth proportional to 291,491.12, 437,236.78 and 225,028.28 is: 337,542.50
Step by Step Solution
- Step 1: Write the proportion equation
291,491.12 : 437,236.78 = 225,028.28 : x - Step 2: Convert to fraction form
291,491.12/437,236.78 = 225,028.28/x - Step 3: Cross multiply
291,491.12x = 437,236.78 × 225,028.28 - Step 4: Simplify right side
291,491.12x = 98,390,640,556.14 - Step 5: Solve for x
x = 98,390,640,556.14/291,491.12 - Step 6: Final answer
x = 337,542.50
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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.