Finding the Fourth Proportional to 312,626.61, 468,938.70 and 75,969.99
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Solution
The fourth proportional to 312,626.61, 468,938.70 and 75,969.99 is: 113,954.69
Step by Step Solution
- Step 1: Write the proportion equation
312,626.61 : 468,938.70 = 75,969.99 : x - Step 2: Convert to fraction form
312,626.61/468,938.70 = 75,969.99/x - Step 3: Cross multiply
312,626.61x = 468,938.70 × 75,969.99 - Step 4: Simplify right side
312,626.61x = 35,625,268,349.61 - Step 5: Solve for x
x = 35,625,268,349.61/312,626.61 - Step 6: Final answer
x = 113,954.69
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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.