Finding the Fourth Proportional to 381,432.96, 526,372.56 and 211,663.44
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Solution
The fourth proportional to 381,432.96, 526,372.56 and 211,663.44 is: 292,092.81
Step by Step Solution
- Step 1: Write the proportion equation
381,432.96 : 526,372.56 = 211,663.44 : x - Step 2: Convert to fraction form
381,432.96/526,372.56 = 211,663.44/x - Step 3: Cross multiply
381,432.96x = 526,372.56 × 211,663.44 - Step 4: Simplify right side
381,432.96x = 111,413,826,771.21 - Step 5: Solve for x
x = 111,413,826,771.21/381,432.96 - Step 6: Final answer
x = 292,092.81
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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.