Finding the Fourth Proportional to 331,728.24, 457,791.60 and 180,825.12
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Solution
The fourth proportional to 331,728.24, 457,791.60 and 180,825.12 is: 249,542.28
Step by Step Solution
- Step 1: Write the proportion equation
331,728.24 : 457,791.60 = 180,825.12 : x - Step 2: Convert to fraction form
331,728.24/457,791.60 = 180,825.12/x - Step 3: Cross multiply
331,728.24x = 457,791.60 × 180,825.12 - Step 4: Simplify right side
331,728.24x = 82,780,221,004.99 - Step 5: Solve for x
x = 82,780,221,004.99/331,728.24 - Step 6: Final answer
x = 249,542.28
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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.