Finding the Fourth Proportional to 278,558.70, 418,076.66 and 276,461.92
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Solution
The fourth proportional to 278,558.70, 418,076.66 and 276,461.92 is: 414,929.68
Step by Step Solution
- Step 1: Write the proportion equation
278,558.70 : 418,076.66 = 276,461.92 : x - Step 2: Convert to fraction form
278,558.70/418,076.66 = 276,461.92/x - Step 3: Cross multiply
278,558.70x = 418,076.66 × 276,461.92 - Step 4: Simplify right side
278,558.70x = 115,582,274,314.88 - Step 5: Solve for x
x = 115,582,274,314.88/278,558.70 - Step 6: Final answer
x = 414,929.68
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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.