Finding the Fourth Proportional to 189,427.50, 261,413.60 and 104,542.74
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Solution
The fourth proportional to 189,427.50, 261,413.60 and 104,542.74 is: 144,270.99
Step by Step Solution
- Step 1: Write the proportion equation
189,427.50 : 261,413.60 = 104,542.74 : x - Step 2: Convert to fraction form
189,427.50/261,413.60 = 104,542.74/x - Step 3: Cross multiply
189,427.50x = 261,413.60 × 104,542.74 - Step 4: Simplify right side
189,427.50x = 27,328,893,494.55 - Step 5: Solve for x
x = 27,328,893,494.55/189,427.50 - Step 6: Final answer
x = 144,270.99
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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.