Finding the Fourth Proportional to 194,413.80, 291,620.70 and 83,605.80
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Solution
The fourth proportional to 194,413.80, 291,620.70 and 83,605.80 is: 125,408.70
Step by Step Solution
- Step 1: Write the proportion equation
194,413.80 : 291,620.70 = 83,605.80 : x - Step 2: Convert to fraction form
194,413.80/291,620.70 = 83,605.80/x - Step 3: Cross multiply
194,413.80x = 291,620.70 × 83,605.80 - Step 4: Simplify right side
194,413.80x = 24,381,181,920.06 - Step 5: Solve for x
x = 24,381,181,920.06/194,413.80 - Step 6: Final answer
x = 125,408.70
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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.