Finding the Fourth Proportional to 279,102.60, 418,524.30 and 121,249.80
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Solution
The fourth proportional to 279,102.60, 418,524.30 and 121,249.80 is: 181,818.40
Step by Step Solution
- Step 1: Write the proportion equation
279,102.60 : 418,524.30 = 121,249.80 : x - Step 2: Convert to fraction form
279,102.60/418,524.30 = 121,249.80/x - Step 3: Cross multiply
279,102.60x = 418,524.30 × 121,249.80 - Step 4: Simplify right side
279,102.60x = 50,745,987,670.14 - Step 5: Solve for x
x = 50,745,987,670.14/279,102.60 - Step 6: Final answer
x = 181,818.40
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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.