Finding the Fourth Proportional to 331,812.60, 497,718.90 and 121,471.80
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Solution
The fourth proportional to 331,812.60, 497,718.90 and 121,471.80 is: 182,207.70
Step by Step Solution
- Step 1: Write the proportion equation
331,812.60 : 497,718.90 = 121,471.80 : x - Step 2: Convert to fraction form
331,812.60/497,718.90 = 121,471.80/x - Step 3: Cross multiply
331,812.60x = 497,718.90 × 121,471.80 - Step 4: Simplify right side
331,812.60x = 60,458,810,677.02 - Step 5: Solve for x
x = 60,458,810,677.02/331,812.60 - Step 6: Final answer
x = 182,207.70
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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.