Finding the Fourth Proportional to 465,639.13, 642,635.26 and 258,928.13
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Solution
The fourth proportional to 465,639.13, 642,635.26 and 258,928.13 is: 357,350.44
Step by Step Solution
- Step 1: Write the proportion equation
465,639.13 : 642,635.26 = 258,928.13 : x - Step 2: Convert to fraction form
465,639.13/642,635.26 = 258,928.13/x - Step 3: Cross multiply
465,639.13x = 642,635.26 × 258,928.13 - Step 4: Simplify right side
465,639.13x = 166,396,345,817.05 - Step 5: Solve for x
x = 166,396,345,817.05/465,639.13 - Step 6: Final answer
x = 357,350.44
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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.