Finding the Fourth Proportional to 331,505.14, 497,331.99 and 121,137.70
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Solution
The fourth proportional to 331,505.14, 497,331.99 and 121,137.70 is: 181,733.69
Step by Step Solution
- Step 1: Write the proportion equation
331,505.14 : 497,331.99 = 121,137.70 : x - Step 2: Convert to fraction form
331,505.14/497,331.99 = 121,137.70/x - Step 3: Cross multiply
331,505.14x = 497,331.99 × 121,137.70 - Step 4: Simplify right side
331,505.14x = 60,245,653,405.02 - Step 5: Solve for x
x = 60,245,653,405.02/331,505.14 - Step 6: Final answer
x = 181,733.69
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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.