Finding the Fourth Proportional to 420,972.24, 580,939.56 and 229,996.56
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Solution
The fourth proportional to 420,972.24, 580,939.56 and 229,996.56 is: 317,394.09
Step by Step Solution
- Step 1: Write the proportion equation
420,972.24 : 580,939.56 = 229,996.56 : x - Step 2: Convert to fraction form
420,972.24/580,939.56 = 229,996.56/x - Step 3: Cross multiply
420,972.24x = 580,939.56 × 229,996.56 - Step 4: Simplify right side
420,972.24x = 133,614,100,367.91 - Step 5: Solve for x
x = 133,614,100,367.91/420,972.24 - Step 6: Final answer
x = 317,394.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.