Finding the Fourth Proportional to 331,508.14, 497,336.49 and 121,140.70
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Solution
The fourth proportional to 331,508.14, 497,336.49 and 121,140.70 is: 181,738.19
Step by Step Solution
- Step 1: Write the proportion equation
331,508.14 : 497,336.49 = 121,140.70 : x - Step 2: Convert to fraction form
331,508.14/497,336.49 = 121,140.70/x - Step 3: Cross multiply
331,508.14x = 497,336.49 × 121,140.70 - Step 4: Simplify right side
331,508.14x = 60,247,690,534.14 - Step 5: Solve for x
x = 60,247,690,534.14/331,508.14 - Step 6: Final answer
x = 181,738.19
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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.