Finding the Fourth Proportional to 288,570.26, 398,338.00 and 258,302.18
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Solution
The fourth proportional to 288,570.26, 398,338.00 and 258,302.18 is: 356,556.40
Step by Step Solution
- Step 1: Write the proportion equation
288,570.26 : 398,338.00 = 258,302.18 : x - Step 2: Convert to fraction form
288,570.26/398,338.00 = 258,302.18/x - Step 3: Cross multiply
288,570.26x = 398,338.00 × 258,302.18 - Step 4: Simplify right side
288,570.26x = 102,891,571,139.40 - Step 5: Solve for x
x = 102,891,571,139.40/288,570.26 - Step 6: Final answer
x = 356,556.40
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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.