Finding the Fourth Proportional to 281,948.08, 389,093.36 and 154,622.56
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Solution
The fourth proportional to 281,948.08, 389,093.36 and 154,622.56 is: 213,381.88
Step by Step Solution
- Step 1: Write the proportion equation
281,948.08 : 389,093.36 = 154,622.56 : x - Step 2: Convert to fraction form
281,948.08/389,093.36 = 154,622.56/x - Step 3: Cross multiply
281,948.08x = 389,093.36 × 154,622.56 - Step 4: Simplify right side
281,948.08x = 60,162,611,402.20 - Step 5: Solve for x
x = 60,162,611,402.20/281,948.08 - Step 6: Final answer
x = 213,381.88
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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.