Finding the Fourth Proportional to 461,246.90, 691,805.55 and 145,735.70
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Solution
The fourth proportional to 461,246.90, 691,805.55 and 145,735.70 is: 218,583.08
Step by Step Solution
- Step 1: Write the proportion equation
461,246.90 : 691,805.55 = 145,735.70 : x - Step 2: Convert to fraction form
461,246.90/691,805.55 = 145,735.70/x - Step 3: Cross multiply
461,246.90x = 691,805.55 × 145,735.70 - Step 4: Simplify right side
461,246.90x = 100,820,766,093.14 - Step 5: Solve for x
x = 100,820,766,093.14/461,246.90 - Step 6: Final answer
x = 218,583.08
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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.