Finding the Fourth Proportional to 221,554.89, 332,440.79 and 137,292.53
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Solution
The fourth proportional to 221,554.89, 332,440.79 and 137,292.53 is: 206,005.99
Step by Step Solution
- Step 1: Write the proportion equation
221,554.89 : 332,440.79 = 137,292.53 : x - Step 2: Convert to fraction form
221,554.89/332,440.79 = 137,292.53/x - Step 3: Cross multiply
221,554.89x = 332,440.79 × 137,292.53 - Step 4: Simplify right side
221,554.89x = 45,641,634,785.63 - Step 5: Solve for x
x = 45,641,634,785.63/221,554.89 - Step 6: Final answer
x = 206,005.99
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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.