Finding the Fourth Proportional to 261,704.10, 392,556.15 and 219,713.70
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Solution
The fourth proportional to 261,704.10, 392,556.15 and 219,713.70 is: 329,570.55
Step by Step Solution
- Step 1: Write the proportion equation
261,704.10 : 392,556.15 = 219,713.70 : x - Step 2: Convert to fraction form
261,704.10/392,556.15 = 219,713.70/x - Step 3: Cross multiply
261,704.10x = 392,556.15 × 219,713.70 - Step 4: Simplify right side
261,704.10x = 86,249,964,174.26 - Step 5: Solve for x
x = 86,249,964,174.26/261,704.10 - Step 6: Final answer
x = 329,570.55
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Similar ratio
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1.5x scale
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.