Finding the Fourth Proportional to 261,679.80, 392,519.70 and 235,435.80
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Solution
The fourth proportional to 261,679.80, 392,519.70 and 235,435.80 is: 353,153.70
Step by Step Solution
- Step 1: Write the proportion equation
261,679.80 : 392,519.70 = 235,435.80 : x - Step 2: Convert to fraction form
261,679.80/392,519.70 = 235,435.80/x - Step 3: Cross multiply
261,679.80x = 392,519.70 × 235,435.80 - Step 4: Simplify right side
261,679.80x = 92,413,189,585.26 - Step 5: Solve for x
x = 92,413,189,585.26/261,679.80 - Step 6: Final answer
x = 353,153.70
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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.