Finding the Fourth Proportional to 214,207.40, 321,092.40 and 125,415.20
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Solution
The fourth proportional to 214,207.40, 321,092.40 and 125,415.20 is: 187,994.75
Step by Step Solution
- Step 1: Write the proportion equation
214,207.40 : 321,092.40 = 125,415.20 : x - Step 2: Convert to fraction form
214,207.40/321,092.40 = 125,415.20/x - Step 3: Cross multiply
214,207.40x = 321,092.40 × 125,415.20 - Step 4: Simplify right side
214,207.40x = 40,269,867,564.48 - Step 5: Solve for x
x = 40,269,867,564.48/214,207.40 - Step 6: Final answer
x = 187,994.75
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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.