Finding the Fourth Proportional to 203,621.42, 281,031.27 and 113,006.49
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Solution
The fourth proportional to 203,621.42, 281,031.27 and 113,006.49 is: 155,967.66
Step by Step Solution
- Step 1: Write the proportion equation
203,621.42 : 281,031.27 = 113,006.49 : x - Step 2: Convert to fraction form
203,621.42/281,031.27 = 113,006.49/x - Step 3: Cross multiply
203,621.42x = 281,031.27 × 113,006.49 - Step 4: Simplify right side
203,621.42x = 31,758,357,402.94 - Step 5: Solve for x
x = 31,758,357,402.94/203,621.42 - Step 6: Final answer
x = 155,967.66
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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.