Finding the Fourth Proportional to 261,692.28, 392,289.08 and 84,074.63
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Solution
The fourth proportional to 261,692.28, 392,289.08 and 84,074.63 is: 126,031.83
Step by Step Solution
- Step 1: Write the proportion equation
261,692.28 : 392,289.08 = 84,074.63 : x - Step 2: Convert to fraction form
261,692.28/392,289.08 = 84,074.63/x - Step 3: Cross multiply
261,692.28x = 392,289.08 × 84,074.63 - Step 4: Simplify right side
261,692.28x = 32,981,556,872.22 - Step 5: Solve for x
x = 32,981,556,872.22/261,692.28 - Step 6: Final answer
x = 126,031.83
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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.