Finding the Fourth Proportional to 381,615.76, 526,603.36 and 211,836.48
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Solution
The fourth proportional to 381,615.76, 526,603.36 and 211,836.48 is: 292,319.69
Step by Step Solution
- Step 1: Write the proportion equation
381,615.76 : 526,603.36 = 211,836.48 : x - Step 2: Convert to fraction form
381,615.76/526,603.36 = 211,836.48/x - Step 3: Cross multiply
381,615.76x = 526,603.36 × 211,836.48 - Step 4: Simplify right side
381,615.76x = 111,553,802,138.57 - Step 5: Solve for x
x = 111,553,802,138.57/381,615.76 - Step 6: Final answer
x = 292,319.69
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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.