Finding the Fourth Proportional to 221,380.76, 305,584.33 and 130,737.09
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Solution
The fourth proportional to 221,380.76, 305,584.33 and 130,737.09 is: 180,463.77
Step by Step Solution
- Step 1: Write the proportion equation
221,380.76 : 305,584.33 = 130,737.09 : x - Step 2: Convert to fraction form
221,380.76/305,584.33 = 130,737.09/x - Step 3: Cross multiply
221,380.76x = 305,584.33 × 130,737.09 - Step 4: Simplify right side
221,380.76x = 39,951,206,053.80 - Step 5: Solve for x
x = 39,951,206,053.80/221,380.76 - Step 6: Final answer
x = 180,463.77
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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.