Finding the Fourth Proportional to 288,093.98, 431,926.97 and 138,191.54
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Solution
The fourth proportional to 288,093.98, 431,926.97 and 138,191.54 is: 207,184.65
Step by Step Solution
- Step 1: Write the proportion equation
288,093.98 : 431,926.97 = 138,191.54 : x - Step 2: Convert to fraction form
288,093.98/431,926.97 = 138,191.54/x - Step 3: Cross multiply
288,093.98x = 431,926.97 × 138,191.54 - Step 4: Simplify right side
288,093.98x = 59,688,650,301.24 - Step 5: Solve for x
x = 59,688,650,301.24/288,093.98 - Step 6: Final answer
x = 207,184.65
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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.