Finding the Fourth Proportional to 214,893.15, 321,896.75 and 125,876.79
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Solution
The fourth proportional to 214,893.15, 321,896.75 and 125,876.79 is: 188,555.70
Step by Step Solution
- Step 1: Write the proportion equation
214,893.15 : 321,896.75 = 125,876.79 : x - Step 2: Convert to fraction form
214,893.15/321,896.75 = 125,876.79/x - Step 3: Cross multiply
214,893.15x = 321,896.75 × 125,876.79 - Step 4: Simplify right side
214,893.15x = 40,519,328,972.05 - Step 5: Solve for x
x = 40,519,328,972.05/214,893.15 - Step 6: Final answer
x = 188,555.70
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1.5x scale
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.