Finding the Fourth Proportional to 381,860.84, 526,953.92 and 212,105.90
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Solution
The fourth proportional to 381,860.84, 526,953.92 and 212,105.90 is: 292,698.34
Step by Step Solution
- Step 1: Write the proportion equation
381,860.84 : 526,953.92 = 212,105.90 : x - Step 2: Convert to fraction form
381,860.84/526,953.92 = 212,105.90/x - Step 3: Cross multiply
381,860.84x = 526,953.92 × 212,105.90 - Step 4: Simplify right side
381,860.84x = 111,770,035,460.13 - Step 5: Solve for x
x = 111,770,035,460.13/381,860.84 - Step 6: Final answer
x = 292,698.34
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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.