Finding the Fourth Proportional to 414,122.78, 621,166.09 and 129,806.84
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Solution
The fourth proportional to 414,122.78, 621,166.09 and 129,806.84 is: 194,704.59
Step by Step Solution
- Step 1: Write the proportion equation
414,122.78 : 621,166.09 = 129,806.84 : x - Step 2: Convert to fraction form
414,122.78/621,166.09 = 129,806.84/x - Step 3: Cross multiply
414,122.78x = 621,166.09 × 129,806.84 - Step 4: Simplify right side
414,122.78x = 80,631,607,258.06 - Step 5: Solve for x
x = 80,631,607,258.06/414,122.78 - Step 6: Final answer
x = 194,704.59
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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.