Finding the Fourth Proportional to 312,617.61, 468,925.20 and 75,960.99
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Solution
The fourth proportional to 312,617.61, 468,925.20 and 75,960.99 is: 113,941.19
Step by Step Solution
- Step 1: Write the proportion equation
312,617.61 : 468,925.20 = 75,960.99 : x - Step 2: Convert to fraction form
312,617.61/468,925.20 = 75,960.99/x - Step 3: Cross multiply
312,617.61x = 468,925.20 × 75,960.99 - Step 4: Simplify right side
312,617.61x = 35,620,022,427.95 - Step 5: Solve for x
x = 35,620,022,427.95/312,617.61 - Step 6: Final answer
x = 113,941.19
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1.5x scale
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.