Finding the Fourth Proportional to 313,903.80, 470,855.70 and 274,537.80
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Solution
The fourth proportional to 313,903.80, 470,855.70 and 274,537.80 is: 411,806.70
Step by Step Solution
- Step 1: Write the proportion equation
313,903.80 : 470,855.70 = 274,537.80 : x - Step 2: Convert to fraction form
313,903.80/470,855.70 = 274,537.80/x - Step 3: Cross multiply
313,903.80x = 470,855.70 × 274,537.80 - Step 4: Simplify right side
313,903.80x = 129,267,687,995.46 - Step 5: Solve for x
x = 129,267,687,995.46/313,903.80 - Step 6: Final answer
x = 411,806.70
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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.