Finding the Fourth Proportional to 279,919.48, 420,149.86 and 264,747.17
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Solution
The fourth proportional to 279,919.48, 420,149.86 and 264,747.17 is: 397,376.72
Step by Step Solution
- Step 1: Write the proportion equation
279,919.48 : 420,149.86 = 264,747.17 : x - Step 2: Convert to fraction form
279,919.48/420,149.86 = 264,747.17/x - Step 3: Cross multiply
279,919.48x = 420,149.86 × 264,747.17 - Step 4: Simplify right side
279,919.48x = 111,233,486,713.04 - Step 5: Solve for x
x = 111,233,486,713.04/279,919.48 - Step 6: Final answer
x = 397,376.72
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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.