Finding the Fourth Proportional to 216,569.15, 324,909.08 and 83,413.65
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Solution
The fourth proportional to 216,569.15, 324,909.08 and 83,413.65 is: 125,141.80
Step by Step Solution
- Step 1: Write the proportion equation
216,569.15 : 324,909.08 = 83,413.65 : x - Step 2: Convert to fraction form
216,569.15/324,909.08 = 83,413.65/x - Step 3: Cross multiply
216,569.15x = 324,909.08 × 83,413.65 - Step 4: Simplify right side
216,569.15x = 27,101,852,280.94 - Step 5: Solve for x
x = 27,101,852,280.94/216,569.15 - Step 6: Final answer
x = 125,141.80
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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.