Finding the Fourth Proportional to 282,431.04, 389,754.37 and 155,106.63
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Solution
The fourth proportional to 282,431.04, 389,754.37 and 155,106.63 is: 214,046.89
Step by Step Solution
- Step 1: Write the proportion equation
282,431.04 : 389,754.37 = 155,106.63 : x - Step 2: Convert to fraction form
282,431.04/389,754.37 = 155,106.63/x - Step 3: Cross multiply
282,431.04x = 389,754.37 × 155,106.63 - Step 4: Simplify right side
282,431.04x = 60,453,486,858.47 - Step 5: Solve for x
x = 60,453,486,858.47/282,431.04 - Step 6: Final answer
x = 214,046.89
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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.