Finding the Fourth Proportional to 396,607.68, 547,069.32 and 235,348.56
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Solution
The fourth proportional to 396,607.68, 547,069.32 and 235,348.56 is: 324,633.09
Step by Step Solution
- Step 1: Write the proportion equation
396,607.68 : 547,069.32 = 235,348.56 : x - Step 2: Convert to fraction form
396,607.68/547,069.32 = 235,348.56/x - Step 3: Cross multiply
396,607.68x = 547,069.32 × 235,348.56 - Step 4: Simplify right side
396,607.68x = 128,751,976,682.18 - Step 5: Solve for x
x = 128,751,976,682.18/396,607.68 - Step 6: Final answer
x = 324,633.09
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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.