Finding the Fourth Proportional to 485,138.24, 727,785.12 and 204,696.80
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Solution
The fourth proportional to 485,138.24, 727,785.12 and 204,696.80 is: 307,078.01
Step by Step Solution
- Step 1: Write the proportion equation
485,138.24 : 727,785.12 = 204,696.80 : x - Step 2: Convert to fraction form
485,138.24/727,785.12 = 204,696.80/x - Step 3: Cross multiply
485,138.24x = 727,785.12 × 204,696.80 - Step 4: Simplify right side
485,138.24x = 148,975,285,151.62 - Step 5: Solve for x
x = 148,975,285,151.62/485,138.24 - Step 6: Final answer
x = 307,078.01
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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.