Finding the Fourth Proportional to 331,201.70, 496,802.55 and 81,883.70
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Solution
The fourth proportional to 331,201.70, 496,802.55 and 81,883.70 is: 122,825.55
Step by Step Solution
- Step 1: Write the proportion equation
331,201.70 : 496,802.55 = 81,883.70 : x - Step 2: Convert to fraction form
331,201.70/496,802.55 = 81,883.70/x - Step 3: Cross multiply
331,201.70x = 496,802.55 × 81,883.70 - Step 4: Simplify right side
331,201.70x = 40,680,030,963.44 - Step 5: Solve for x
x = 40,680,030,963.44/331,201.70 - Step 6: Final answer
x = 122,825.55
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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.