Finding the Fourth Proportional to 331,310.24, 497,023.80 and 121,241.60
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Solution
The fourth proportional to 331,310.24, 497,023.80 and 121,241.60 is: 181,883.79
Step by Step Solution
- Step 1: Write the proportion equation
331,310.24 : 497,023.80 = 121,241.60 : x - Step 2: Convert to fraction form
331,310.24/497,023.80 = 121,241.60/x - Step 3: Cross multiply
331,310.24x = 497,023.80 × 121,241.60 - Step 4: Simplify right side
331,310.24x = 60,259,960,750.08 - Step 5: Solve for x
x = 60,259,960,750.08/331,310.24 - Step 6: Final answer
x = 181,883.79
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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.