Finding the Fourth Proportional to 278,537.28, 418,371.84 and 245,994.72
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Solution
The fourth proportional to 278,537.28, 418,371.84 and 245,994.72 is: 369,491.88
Step by Step Solution
- Step 1: Write the proportion equation
278,537.28 : 418,371.84 = 245,994.72 : x - Step 2: Convert to fraction form
278,537.28/418,371.84 = 245,994.72/x - Step 3: Cross multiply
278,537.28x = 418,371.84 × 245,994.72 - Step 4: Simplify right side
278,537.28x = 102,917,263,636.69 - Step 5: Solve for x
x = 102,917,263,636.69/278,537.28 - Step 6: Final answer
x = 369,491.88
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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.