Finding the Fourth Proportional to 288,855.14, 398,612.63 and 159,790.23
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Solution
The fourth proportional to 288,855.14, 398,612.63 and 159,790.23 is: 220,506.39
Step by Step Solution
- Step 1: Write the proportion equation
288,855.14 : 398,612.63 = 159,790.23 : x - Step 2: Convert to fraction form
288,855.14/398,612.63 = 159,790.23/x - Step 3: Cross multiply
288,855.14x = 398,612.63 × 159,790.23 - Step 4: Simplify right side
288,855.14x = 63,694,403,029.65 - Step 5: Solve for x
x = 63,694,403,029.65/288,855.14 - Step 6: Final answer
x = 220,506.39
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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.