Finding the Fourth Proportional to 261,766.20, 392,649.30 and 173,119.80
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Solution
The fourth proportional to 261,766.20, 392,649.30 and 173,119.80 is: 259,679.70
Step by Step Solution
- Step 1: Write the proportion equation
261,766.20 : 392,649.30 = 173,119.80 : x - Step 2: Convert to fraction form
261,766.20/392,649.30 = 173,119.80/x - Step 3: Cross multiply
261,766.20x = 392,649.30 × 173,119.80 - Step 4: Simplify right side
261,766.20x = 67,975,368,286.14 - Step 5: Solve for x
x = 67,975,368,286.14/261,766.20 - Step 6: Final answer
x = 259,679.70
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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.