Finding the Fourth Proportional to 268,492.13, 402,725.42 and 78,944.84
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Solution
The fourth proportional to 268,492.13, 402,725.42 and 78,944.84 is: 118,413.50
Step by Step Solution
- Step 1: Write the proportion equation
268,492.13 : 402,725.42 = 78,944.84 : x - Step 2: Convert to fraction form
268,492.13/402,725.42 = 78,944.84/x - Step 3: Cross multiply
268,492.13x = 402,725.42 × 78,944.84 - Step 4: Simplify right side
268,492.13x = 31,793,093,845.83 - Step 5: Solve for x
x = 31,793,093,845.83/268,492.13 - Step 6: Final answer
x = 118,413.50
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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.