Finding the Fourth Proportional to 217,133.10, 325,590.30 and 128,413.80
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Solution
The fourth proportional to 217,133.10, 325,590.30 and 128,413.80 is: 192,556.03
Step by Step Solution
- Step 1: Write the proportion equation
217,133.10 : 325,590.30 = 128,413.80 : x - Step 2: Convert to fraction form
217,133.10/325,590.30 = 128,413.80/x - Step 3: Cross multiply
217,133.10x = 325,590.30 × 128,413.80 - Step 4: Simplify right side
217,133.10x = 41,810,287,666.14 - Step 5: Solve for x
x = 41,810,287,666.14/217,133.10 - Step 6: Final answer
x = 192,556.03
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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.