Finding the Fourth Proportional to 218,438.36, 327,401.88 and 83,413.99
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Solution
The fourth proportional to 218,438.36, 327,401.88 and 83,413.99 is: 125,023.36
Step by Step Solution
- Step 1: Write the proportion equation
218,438.36 : 327,401.88 = 83,413.99 : x - Step 2: Convert to fraction form
218,438.36/327,401.88 = 83,413.99/x - Step 3: Cross multiply
218,438.36x = 327,401.88 × 83,413.99 - Step 4: Simplify right side
218,438.36x = 27,309,897,144.30 - Step 5: Solve for x
x = 27,309,897,144.30/218,438.36 - Step 6: Final answer
x = 125,023.36
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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.