Finding the Fourth Proportional to 212,520.92, 318,413.23 and 149,220.63
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Solution
The fourth proportional to 212,520.92, 318,413.23 and 149,220.63 is: 223,572.45
Step by Step Solution
- Step 1: Write the proportion equation
212,520.92 : 318,413.23 = 149,220.63 : x - Step 2: Convert to fraction form
212,520.92/318,413.23 = 149,220.63/x - Step 3: Cross multiply
212,520.92x = 318,413.23 × 149,220.63 - Step 4: Simplify right side
212,520.92x = 47,513,822,407.88 - Step 5: Solve for x
x = 47,513,822,407.88/212,520.92 - Step 6: Final answer
x = 223,572.45
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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.