Finding the Fourth Proportional to 396,611.68, 547,074.84 and 235,352.56
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Solution
The fourth proportional to 396,611.68, 547,074.84 and 235,352.56 is: 324,638.61
Step by Step Solution
- Step 1: Write the proportion equation
396,611.68 : 547,074.84 = 235,352.56 : x - Step 2: Convert to fraction form
396,611.68/547,074.84 = 235,352.56/x - Step 3: Cross multiply
396,611.68x = 547,074.84 × 235,352.56 - Step 4: Simplify right side
396,611.68x = 128,755,464,105.59 - Step 5: Solve for x
x = 128,755,464,105.59/396,611.68 - Step 6: Final answer
x = 324,638.61
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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.