Finding the Fourth Proportional to 288,045.70, 431,938.95 and 110,493.70
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Solution
The fourth proportional to 288,045.70, 431,938.95 and 110,493.70 is: 165,690.84
Step by Step Solution
- Step 1: Write the proportion equation
288,045.70 : 431,938.95 = 110,493.70 : x - Step 2: Convert to fraction form
288,045.70/431,938.95 = 110,493.70/x - Step 3: Cross multiply
288,045.70x = 431,938.95 × 110,493.70 - Step 4: Simplify right side
288,045.70x = 47,726,532,759.62 - Step 5: Solve for x
x = 47,726,532,759.62/288,045.70 - Step 6: Final answer
x = 165,690.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.