Finding the Fourth Proportional to 415,563.75, 573,478.11 and 236,715.75
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Solution
The fourth proportional to 415,563.75, 573,478.11 and 236,715.75 is: 326,667.81
Step by Step Solution
- Step 1: Write the proportion equation
415,563.75 : 573,478.11 = 236,715.75 : x - Step 2: Convert to fraction form
415,563.75/573,478.11 = 236,715.75/x - Step 3: Cross multiply
415,563.75x = 573,478.11 × 236,715.75 - Step 4: Simplify right side
415,563.75x = 135,751,300,917.23 - Step 5: Solve for x
x = 135,751,300,917.23/415,563.75 - Step 6: Final answer
x = 326,667.81
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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.