Finding the Fourth Proportional to 280,623.59, 420,939.02 and 93,635.09
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Solution
The fourth proportional to 280,623.59, 420,939.02 and 93,635.09 is: 140,453.84
Step by Step Solution
- Step 1: Write the proportion equation
280,623.59 : 420,939.02 = 93,635.09 : x - Step 2: Convert to fraction form
280,623.59/420,939.02 = 93,635.09/x - Step 3: Cross multiply
280,623.59x = 420,939.02 × 93,635.09 - Step 4: Simplify right side
280,623.59x = 39,414,661,151.60 - Step 5: Solve for x
x = 39,414,661,151.60/280,623.59 - Step 6: Final answer
x = 140,453.84
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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.