Finding the Fourth Proportional to 300,986.76, 415,358.92 and 165,028.26
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Solution
The fourth proportional to 300,986.76, 415,358.92 and 165,028.26 is: 227,737.46
Step by Step Solution
- Step 1: Write the proportion equation
300,986.76 : 415,358.92 = 165,028.26 : x - Step 2: Convert to fraction form
300,986.76/415,358.92 = 165,028.26/x - Step 3: Cross multiply
300,986.76x = 415,358.92 × 165,028.26 - Step 4: Simplify right side
300,986.76x = 68,545,959,843.08 - Step 5: Solve for x
x = 68,545,959,843.08/300,986.76 - Step 6: Final answer
x = 227,737.46
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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.