Finding the Fourth Proportional to 218,125.70, 326,945.55 and 84,961.70
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Solution
The fourth proportional to 218,125.70, 326,945.55 and 84,961.70 is: 127,347.90
Step by Step Solution
- Step 1: Write the proportion equation
218,125.70 : 326,945.55 = 84,961.70 : x - Step 2: Convert to fraction form
218,125.70/326,945.55 = 84,961.70/x - Step 3: Cross multiply
218,125.70x = 326,945.55 × 84,961.70 - Step 4: Simplify right side
218,125.70x = 27,777,849,735.44 - Step 5: Solve for x
x = 27,777,849,735.44/218,125.70 - Step 6: Final answer
x = 127,347.90
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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.