Finding the Fourth Proportional to 276,760.86, 381,918.14 and 154,246.70
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Solution
The fourth proportional to 276,760.86, 381,918.14 and 154,246.70 is: 212,853.84
Step by Step Solution
- Step 1: Write the proportion equation
276,760.86 : 381,918.14 = 154,246.70 : x - Step 2: Convert to fraction form
276,760.86/381,918.14 = 154,246.70/x - Step 3: Cross multiply
276,760.86x = 381,918.14 × 154,246.70 - Step 4: Simplify right side
276,760.86x = 58,909,612,765.14 - Step 5: Solve for x
x = 58,909,612,765.14/276,760.86 - Step 6: Final answer
x = 212,853.84
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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.