Finding the Fourth Proportional to 331,338.24, 497,065.80 and 121,269.60
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Solution
The fourth proportional to 331,338.24, 497,065.80 and 121,269.60 is: 181,925.79
Step by Step Solution
- Step 1: Write the proportion equation
331,338.24 : 497,065.80 = 121,269.60 : x - Step 2: Convert to fraction form
331,338.24/497,065.80 = 121,269.60/x - Step 3: Cross multiply
331,338.24x = 497,065.80 × 121,269.60 - Step 4: Simplify right side
331,338.24x = 60,278,970,739.68 - Step 5: Solve for x
x = 60,278,970,739.68/331,338.24 - Step 6: Final answer
x = 181,925.79
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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.