Finding the Fourth Proportional to 212,619.64, 293,413.74 and 117,124.12
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Solution
The fourth proportional to 212,619.64, 293,413.74 and 117,124.12 is: 161,630.53
Step by Step Solution
- Step 1: Write the proportion equation
212,619.64 : 293,413.74 = 117,124.12 : x - Step 2: Convert to fraction form
212,619.64/293,413.74 = 117,124.12/x - Step 3: Cross multiply
212,619.64x = 293,413.74 × 117,124.12 - Step 4: Simplify right side
212,619.64x = 34,365,826,093.41 - Step 5: Solve for x
x = 34,365,826,093.41/212,619.64 - Step 6: Final answer
x = 161,630.53
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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.