Finding the Fourth Proportional to 189,223.63, 261,119.03 and 107,549.75
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Solution
The fourth proportional to 189,223.63, 261,119.03 and 107,549.75 is: 148,413.20
Step by Step Solution
- Step 1: Write the proportion equation
189,223.63 : 261,119.03 = 107,549.75 : x - Step 2: Convert to fraction form
189,223.63/261,119.03 = 107,549.75/x - Step 3: Cross multiply
189,223.63x = 261,119.03 × 107,549.75 - Step 4: Simplify right side
189,223.63x = 28,083,285,091.15 - Step 5: Solve for x
x = 28,083,285,091.15/189,223.63 - Step 6: Final answer
x = 148,413.20
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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.