Finding the Fourth Proportional to 288,860.45, 398,618.96 and 159,804.09
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Solution
The fourth proportional to 288,860.45, 398,618.96 and 159,804.09 is: 220,524.96
Step by Step Solution
- Step 1: Write the proportion equation
288,860.45 : 398,618.96 = 159,804.09 : x - Step 2: Convert to fraction form
288,860.45/398,618.96 = 159,804.09/x - Step 3: Cross multiply
288,860.45x = 398,618.96 × 159,804.09 - Step 4: Simplify right side
288,860.45x = 63,700,939,360.53 - Step 5: Solve for x
x = 63,700,939,360.53/288,860.45 - Step 6: Final answer
x = 220,524.96
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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.