Finding the Fourth Proportional to 288,748.15, 398,475.09 and 159,679.95
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Solution
The fourth proportional to 288,748.15, 398,475.09 and 159,679.95 is: 220,359.80
Step by Step Solution
- Step 1: Write the proportion equation
288,748.15 : 398,475.09 = 159,679.95 : x - Step 2: Convert to fraction form
288,748.15/398,475.09 = 159,679.95/x - Step 3: Cross multiply
288,748.15x = 398,475.09 × 159,679.95 - Step 4: Simplify right side
288,748.15x = 63,628,482,447.45 - Step 5: Solve for x
x = 63,628,482,447.45/288,748.15 - Step 6: Final answer
x = 220,359.80
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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.