Finding the Fourth Proportional to 288,070.20, 397,497.15 and 160,721.10
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Solution
The fourth proportional to 288,070.20, 397,497.15 and 160,721.10 is: 221,772.95
Step by Step Solution
- Step 1: Write the proportion equation
288,070.20 : 397,497.15 = 160,721.10 : x - Step 2: Convert to fraction form
288,070.20/397,497.15 = 160,721.10/x - Step 3: Cross multiply
288,070.20x = 397,497.15 × 160,721.10 - Step 4: Simplify right side
288,070.20x = 63,886,179,194.87 - Step 5: Solve for x
x = 63,886,179,194.87/288,070.20 - Step 6: Final answer
x = 221,772.95
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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.