Finding the Fourth Proportional to 381,381.96, 526,305.42 and 211,615.68
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Solution
The fourth proportional to 381,381.96, 526,305.42 and 211,615.68 is: 292,028.70
Step by Step Solution
- Step 1: Write the proportion equation
381,381.96 : 526,305.42 = 211,615.68 : x - Step 2: Convert to fraction form
381,381.96/526,305.42 = 211,615.68/x - Step 3: Cross multiply
381,381.96x = 526,305.42 × 211,615.68 - Step 4: Simplify right side
381,381.96x = 111,374,479,340.99 - Step 5: Solve for x
x = 111,374,479,340.99/381,381.96 - Step 6: Final answer
x = 292,028.70
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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.