Finding the Fourth Proportional to 178,680.01, 246,413.85 and 121,405.08
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Solution
The fourth proportional to 178,680.01, 246,413.85 and 121,405.08 is: 167,427.20
Step by Step Solution
- Step 1: Write the proportion equation
178,680.01 : 246,413.85 = 121,405.08 : x - Step 2: Convert to fraction form
178,680.01/246,413.85 = 121,405.08/x - Step 3: Cross multiply
178,680.01x = 246,413.85 × 121,405.08 - Step 4: Simplify right side
178,680.01x = 29,915,893,172.36 - Step 5: Solve for x
x = 29,915,893,172.36/178,680.01 - Step 6: Final answer
x = 167,427.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.