Finding the Fourth Proportional to 204,885.80, 307,328.70 and 163,413.80
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Solution
The fourth proportional to 204,885.80, 307,328.70 and 163,413.80 is: 245,120.70
Step by Step Solution
- Step 1: Write the proportion equation
204,885.80 : 307,328.70 = 163,413.80 : x - Step 2: Convert to fraction form
204,885.80/307,328.70 = 163,413.80/x - Step 3: Cross multiply
204,885.80x = 307,328.70 × 163,413.80 - Step 4: Simplify right side
204,885.80x = 50,221,750,716.06 - Step 5: Solve for x
x = 50,221,750,716.06/204,885.80 - Step 6: Final answer
x = 245,120.70
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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.