Finding the Fourth Proportional to 213,658.49, 320,340.12 and 93,657.80
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Solution
The fourth proportional to 213,658.49, 320,340.12 and 93,657.80 is: 140,421.99
Step by Step Solution
- Step 1: Write the proportion equation
213,658.49 : 320,340.12 = 93,657.80 : x - Step 2: Convert to fraction form
213,658.49/320,340.12 = 93,657.80/x - Step 3: Cross multiply
213,658.49x = 320,340.12 × 93,657.80 - Step 4: Simplify right side
213,658.49x = 30,002,351,340.57 - Step 5: Solve for x
x = 30,002,351,340.57/213,658.49 - Step 6: Final answer
x = 140,421.99
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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.