Finding the Fourth Proportional to 412,129.75, 618,454.31 and 175,471.99
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Solution
The fourth proportional to 412,129.75, 618,454.31 and 175,471.99 is: 263,318.55
Step by Step Solution
- Step 1: Write the proportion equation
412,129.75 : 618,454.31 = 175,471.99 : x - Step 2: Convert to fraction form
412,129.75/618,454.31 = 175,471.99/x - Step 3: Cross multiply
412,129.75x = 618,454.31 × 175,471.99 - Step 4: Simplify right side
412,129.75x = 108,521,407,622.42 - Step 5: Solve for x
x = 108,521,407,622.42/412,129.75 - Step 6: Final answer
x = 263,318.55
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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.