Finding the Fourth Proportional to 280,481.15, 420,471.63 and 102,946.97
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Solution
The fourth proportional to 280,481.15, 420,471.63 and 102,946.97 is: 154,328.66
Step by Step Solution
- Step 1: Write the proportion equation
280,481.15 : 420,471.63 = 102,946.97 : x - Step 2: Convert to fraction form
280,481.15/420,471.63 = 102,946.97/x - Step 3: Cross multiply
280,481.15x = 420,471.63 × 102,946.97 - Step 4: Simplify right side
280,481.15x = 43,286,280,279.46 - Step 5: Solve for x
x = 43,286,280,279.46/280,481.15 - Step 6: Final answer
x = 154,328.66
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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.