Finding the Fourth Proportional to 331,807.09, 497,712.45 and 82,489.09
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Solution
The fourth proportional to 331,807.09, 497,712.45 and 82,489.09 is: 123,734.08
Step by Step Solution
- Step 1: Write the proportion equation
331,807.09 : 497,712.45 = 82,489.09 : x - Step 2: Convert to fraction form
331,807.09/497,712.45 = 82,489.09/x - Step 3: Cross multiply
331,807.09x = 497,712.45 × 82,489.09 - Step 4: Simplify right side
331,807.09x = 41,055,844,593.61 - Step 5: Solve for x
x = 41,055,844,593.61/331,807.09 - Step 6: Final answer
x = 123,734.08
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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.