Finding the Fourth Proportional to 288,418.20, 398,014.74 and 159,356.26
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Solution
The fourth proportional to 288,418.20, 398,014.74 and 159,356.26 is: 219,910.33
Step by Step Solution
- Step 1: Write the proportion equation
288,418.20 : 398,014.74 = 159,356.26 : x - Step 2: Convert to fraction form
288,418.20/398,014.74 = 159,356.26/x - Step 3: Cross multiply
288,418.20x = 398,014.74 × 159,356.26 - Step 4: Simplify right side
288,418.20x = 63,426,140,391.27 - Step 5: Solve for x
x = 63,426,140,391.27/288,418.20 - Step 6: Final answer
x = 219,910.33
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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.