Finding the Fourth Proportional to 381,927.12, 572,893.92 and 115,708.56
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Solution
The fourth proportional to 381,927.12, 572,893.92 and 115,708.56 is: 173,563.82
Step by Step Solution
- Step 1: Write the proportion equation
381,927.12 : 572,893.92 = 115,708.56 : x - Step 2: Convert to fraction form
381,927.12/572,893.92 = 115,708.56/x - Step 3: Cross multiply
381,927.12x = 572,893.92 × 115,708.56 - Step 4: Simplify right side
381,927.12x = 66,288,730,515.96 - Step 5: Solve for x
x = 66,288,730,515.96/381,927.12 - Step 6: Final answer
x = 173,563.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.