Finding the Fourth Proportional to 282,548.63, 389,917.26 and 155,232.42
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Solution
The fourth proportional to 282,548.63, 389,917.26 and 155,232.42 is: 214,220.82
Step by Step Solution
- Step 1: Write the proportion equation
282,548.63 : 389,917.26 = 155,232.42 : x - Step 2: Convert to fraction form
282,548.63/389,917.26 = 155,232.42/x - Step 3: Cross multiply
282,548.63x = 389,917.26 × 155,232.42 - Step 4: Simplify right side
282,548.63x = 60,527,799,869.57 - Step 5: Solve for x
x = 60,527,799,869.57/282,548.63 - Step 6: Final answer
x = 214,220.82
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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.