Finding the Fourth Proportional to 282,615.12, 422,083.26 and 253,221.84
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Solution
The fourth proportional to 282,615.12, 422,083.26 and 253,221.84 is: 378,184.65
Step by Step Solution
- Step 1: Write the proportion equation
282,615.12 : 422,083.26 = 253,221.84 : x - Step 2: Convert to fraction form
282,615.12/422,083.26 = 253,221.84/x - Step 3: Cross multiply
282,615.12x = 422,083.26 × 253,221.84 - Step 4: Simplify right side
282,615.12x = 106,880,699,730.40 - Step 5: Solve for x
x = 106,880,699,730.40/282,615.12 - Step 6: Final answer
x = 378,184.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.